Communication method and apparatus, and terminal and network-side device

Abstract

The present application belongs to the technical field of communications. Disclosed are a communication method and apparatus, and a terminal and a network-side device. The communication method in the embodiments of the present application comprises: a terminal executing a first operation, wherein the first operation comprises at least one of the following: determining a synchronization signal block (SSB) detection capability of the terminal; reporting the SSB detection capability of the terminal, and / or, requesting SSB transmission corresponding to the SSB detection capability of the terminal; and determining the SSB transmission capability of a network-side device.

Description

Communication method, apparatus, terminal and network side device

[0001] Cross-reference to Related Applications

[0002] The present application claims priority to Chinese Patent Application No. 202411094367.4, filed on August 9, 2024, the contents of which are incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application belongs to the technical field of communication, and specifically relates to a communication method, apparatus, terminal and network side device. BACKGROUND

[0004] In related technologies, for a specific network, only one type of Synchronization Signal Block (SSB) is supported, and the default search period is 20 ms. However, future networks may need to support different types and / or different properties of SSBs, such as SSBs with larger periods for network energy saving, or SSBs with lower complexity for initial search and initial downlink synchronization, etc., thereby being applied to different terminal types, different application scenarios and frequency bands. However, the detection of these different types / properties of SSBs may not be supported by all terminals. In this case, how to guarantee the SSB detection of the terminal is a problem that needs to be solved urgently. SUMMARY

[0005] Embodiments of the present application provide a communication method, apparatus, terminal and network side device, which can solve the problem of how to guarantee the SSB detection of the terminal.

[0006] In a first aspect, a communication method is provided, which is performed by a terminal, and the method comprises:

[0007] The terminal performs a first operation.

[0008] The first operation comprises at least one of the following:

[0009] Determining the Synchronization Signal Block (SSB) detection capability of the terminal.

[0010] Reporting the SSB detection capability of the terminal, and / or requesting SSB transmission corresponding to the SSB detection capability of the terminal.

[0011] Determining the SSB transmission capability of the network side device.

[0012] In a second aspect, a communication method is provided, which is performed by a network side device, and the method comprises:

[0013] The network side device performs a second operation.

[0014] The second operation includes at least one of the following:

[0015] Obtaining SSB detection capability reported by the terminal, and / or obtaining a request for SSB transmission corresponding to the SSB detection capability of the terminal sent by the terminal;

[0016] Determining SSB transmission capability of the network side device;

[0017] Sending fourth information to the terminal, the fourth information being used for indicating whether the network side device supports specific SSB transmission, and / or indicating SSB transmission capability of the network side device in the case that the network side device supports specific SSB transmission; or the fourth information being used for configuring specific SSB.

[0018] In a third aspect, a communication apparatus applied to a terminal is provided, and the communication apparatus includes:

[0019] The first processing module is configured to perform a first operation.

[0020] The first operation includes at least one of the following:

[0021] Determining SSB detection capability of the terminal;

[0022] Reporting SSB detection capability of the terminal, and / or requesting SSB transmission corresponding to the SSB detection capability of the terminal;

[0023] Determining SSB transmission capability of the network side device.

[0024] In a fourth aspect, a communication apparatus applied to a network side device is provided, and the communication apparatus includes:

[0025] The second processing module is configured to perform a second operation.

[0026] The second operation includes at least one of the following:

[0027] Obtaining SSB detection capability reported by the terminal, and / or obtaining a request for SSB transmission corresponding to the SSB detection capability of the terminal sent by the terminal;

[0028] Determining SSB transmission capability of the network side device;

[0029] Sending fourth information to the terminal, the fourth information being used for indicating whether the network side device supports specific SSB transmission, and / or indicating SSB transmission capability of the network side device in the case that the network side device supports specific SSB transmission; or the fourth information being used for configuring specific SSB.

[0030] In a fifth aspect, a communication apparatus is provided, the apparatus being configured to perform the steps of the method of the first aspect, or to implement the steps of the method of the second aspect.

[0031] In a sixth aspect, a terminal is provided, the terminal comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions being executed by the processor to implement the steps of the method of the first aspect.

[0032] In a seventh aspect, a terminal is provided, comprising a processor and a communication interface, wherein the processor is configured to perform a first operation; the first operation comprises at least one of the following: determining an SSB detection capability of the terminal; reporting the SSB detection capability of the terminal, and / or requesting an SSB transmission corresponding to the SSB detection capability of the terminal; determining an SSB transmission capability of a network-side device.

[0033] In an eighth aspect, a network-side device is provided, the network-side device comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions being executed by the processor to implement the steps of the method of the second aspect.

[0034] In a ninth aspect, a network-side device is provided, comprising a processor and a communication interface, wherein the processor is configured to perform a second operation; the second operation comprises at least one of the following: obtaining an SSB detection capability reported by a terminal, and / or obtaining a request for an SSB transmission corresponding to the SSB detection capability of the terminal sent by the terminal; determining an SSB transmission capability of the network-side device; sending, to the terminal through the communication interface, fourth information, the fourth information being used to indicate whether the network-side device supports a specific SSB transmission, and / or, in a case where the network-side device supports the specific SSB transmission, indicating the SSB transmission capability of the network-side device; or the fourth information is used to configure a specific SSB.

[0035] In a tenth aspect, a readable storage medium is provided, the readable storage medium storing a program or instructions, the program or instructions being executed by a processor to implement the steps of the method of the first aspect, or to implement the steps of the method of the second aspect.

[0036] In an eleventh aspect, a wireless communication system is provided, comprising a terminal and a network-side device, the terminal being configured to perform the steps of the method of the first aspect, and the network-side device being configured to perform the steps of the method of the second aspect.

[0037] In a twelfth aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface and the processor coupled, the processor configured to run a program or instructions to implement the method of the first aspect, or to implement the method of the second aspect.

[0038] In a thirteenth aspect, a computer program / program product is provided, the computer program / program product stored in a storage medium, the computer program / program product executed by at least one processor to implement the steps of the method of the first aspect, or to implement the steps of the method of the second aspect.

[0039] By the scheme of the embodiments of the present application, the SSB detection capability of the terminal can be determined, the SSB detection capability of the terminal is reported, the SSB transmission corresponding to the SSB detection capability of the terminal is requested, and / or the SSB transmission capability of the network side device is determined, so that the SSB detection capability of the terminal side / SSB transmission capability of the network side is clear, and then the SSB detection of the terminal is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0040] FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application can be applied;

[0041] FIG. 2 is a flowchart of a communication method according to an embodiment of the present application;

[0042] FIG. 3 is a flowchart of another communication method according to an embodiment of the present application;

[0043] FIG. 4 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application;

[0044] FIG. 5 is a schematic structural diagram of another communication apparatus according to an embodiment of the present application;

[0045] FIG. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application;

[0046] FIG. 7 is a schematic structural diagram of a terminal according to an embodiment of the present application;

[0047] FIG. 8 is a schematic structural diagram of a network side device according to an embodiment of the present application. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present application will be described clearly below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0049] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0050] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc., in the instruction sent. An indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.

[0051] It is worth noting that the technology described in the embodiments of the present application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th Generation (6G) communication systems. th

[0052] ​FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can be a terminal-side device such as a mobile phone, a Tablet Personal Computer, a Laptop Computer, a notebook computer, a Personal Digital Assistant (PDA), a palmtop computer, a netbook, an Ultra-mobile Personal Computer (UMPC), a Mobile Internet Device (MID), an Augmented Reality (AR) device, a Virtual Reality (VR) device, a robot, a wearable device, a flight vehicle, a Vehicle User Equipment (VUE), a shipboard device, a Pedestrian User Equipment (PUE), a smart home (a home device with a wireless communication function such as a refrigerator, a television, a washing machine, or furniture), a game console, a Personal Computer (PC), a kiosk, or a self-service machine. The wearable device includes a smart watch, a smart bracelet, a smart earphone, smart glasses, smart jewelry (a smart bracelet, a smart necklace, a smart ring, a smart necklace, a smart anklet, a smart necklace, etc.), a smart wristband, smart clothes, etc. The vehicle-mounted device can also be referred to as a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network-side device 12 can include an access network device or a core network device. The access network device can also be referred to as a Radio Access Network (RAN) device, a radio access network function, or a radio access network unit. The access network device can include a base station, a Wireless Local Area Network (WLAN) Access Point (AP), or a Wireless Fidelity (WiFi) node, etc.The base station can be referred to as a Node B (NB), an evolved Node B (eNB), a next generation Node B (gNB), a New Radio Node B (NR Node B), an access point, a relay base station (RBS), a serving base station (SBS), a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home Node B (HNB), a home evolved Node B, a transmit / receive point (TRP), or some other suitable terminology in the art, so long as 5 the base station is capable of communicating with the terminal, and the base station is not limited to a specific technical term. It should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0053] In order to facilitate understanding of the embodiments of the present application, the following content is first described.

[0054] In the embodiments of the present application, the physical random access channel transmission opportunity (PRACH transmission occasion) can also be referred to as a physical random access channel opportunity (PRACH Occasion), simply referred to as RO. The RO refers to the time-frequency resource required for sending a random access related sequence. In the time domain position of a transmission physical random access channel (PRACH), multiple frequency division multiplexing (FDM) ROs can be configured. At a time, the number of FDM ROs can be multiple. There is an association relationship between the RO and the actually transmitted SSB. One SSB can be associated with multiple ROs, or multiple SSBs can be associated with one RO.

[0055] In the embodiments of the present application, the PRACH resource can also be referred to as a PRACH sequence, a preamble, a preamble sequence, etc.

[0056] In the embodiments of the present application, the SSB (SS / PBCH block, synchronization signal / physical broadcast channel block, sometimes also referred to as SS block, synchronization signal block) can also be any module containing at least one of a synchronization signal, a broadcast signal, a broadcast channel (such as a physical broadcast channel (PBCH)), other system message downlink broadcast channels (such as system information block (SIB) 1, OSI, etc.), or control channels thereof (such as a physical downlink control channel (PDCCH) under a common search space, etc.), or other reference signals (such as a wake-up signal (WUS), a channel state information-reference signal (CSI-RS)). The SSB can also be extended to any other common channel or signal, such as a PRACH, a common physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH) carrying a Msg3 message (which can be abbreviated as Msg3 PUSCH), a MsgA PUSCH, a configured grant PUSCH (CG PUSCH), a PUSCH in a RACH less handover process, a PUSCH under L1 / L2 triggered mobility (LTM), etc.

[0057] In the embodiments of the present application, the SSB type or SSB transmission mode includes but is not limited to SSB period, SSB structure, SSB frequency domain resource (such as including but not limited to synchronization raster (sync raster), band, subband, carrier, bandwidth part (BWP), etc.), SSB partial signal (such as the first part of the SSB, the second part of the SSB, etc.).

[0058] In the embodiments of the present application, the terminal can be any device that receives, reflects and / or forwards the SSB.

[0059] In the embodiments of the present application, the on demand SSB can be any downlink synchronization and / or broadcast signal that can be activated, deactivated or switched on and off. For activation or deactivation, it can be the index of activating or deactivating part of the SSB, or it can be the index of activating or deactivating all SSBs. The normal SSB is distinguished from the on demand SSB, and does not need to be activated or deactivated.

[0060] In the embodiments of the present application, the activation / deactivation of the on demand SSB can be to allow / disallow the network to transmit the on demand SSB on the corresponding on demand SSB resource, respectively, and / or to allow / disallow the terminal to detect the SSB signal on the corresponding on demand SSB resource, respectively.

[0061] In the embodiments of the present application, activation / deactivation can mean activating / deactivating the on demand SSB, or requesting to activate / deactivate the on demand SSB, and is sometimes referred to as activation / deactivation. Correspondingly, the activation / deactivation signal can be a signal for activating / deactivating the on demand SSB, or a signal for requesting to activate / deactivate the on demand SSB.

[0062] In the embodiments of the present application, the enhanced duplex, the enhanced duplex mode, the cross division duplex (XDD), the enhanced full duplex, the enhanced full duplex mode, the full duplex, and the sub-band full duplex can be understood as different names for the same concept, and can mean supporting uplink sub-band transmission in a downlink time unit, and / or supporting downlink sub-band transmission in an uplink time unit, and / or supporting both uplink sub-band transmission and downlink sub-band transmission in a flexible time unit.

[0063] Considering that the future network may need to support different types and / or different properties of SSBs, and that the detection of these different types / properties of SSBs may not be supported by all terminals, the embodiments of the present application introduce / define different SSB detection capabilities of the corresponding terminals and different SSB transmission capabilities (or SSB transmission configurations) of the corresponding network side, so as to meet the needs of different terminal types, different application scenarios and frequency bands for corresponding SSB detection, and help the network to determine the number of terminals corresponding to the expected SSB and subsequently flexibly schedule resources for the corresponding terminal types, so that the system resource utilization efficiency can be close to optimal.

[0064] The communication method, device, terminal and network side device provided by the embodiments of the present application will be described in detail in combination with the drawings and some embodiments and their application scenarios.

[0065] Please refer to FIG. 2, which is a flow chart of a communication method provided in the embodiments of the present application, the method is executed by a terminal, as shown in FIG. 2, the method comprises the following steps:

[0066] Step 21: the terminal executes a first operation; the first operation comprises at least one of the following: determining the SSB detection capability of the terminal; reporting the SSB detection capability of the terminal, and / or, requesting SSB transmission corresponding to the SSB detection capability of the terminal; determining the SSB transmission capability of the network side device.

[0067] In the embodiments of the present application, the SSB transmission capability of the network side device can be represented / understood as the SSB transmission configuration of the network side device. The network side device is configured with a specific SSB, which means that the corresponding SSB transmission is supported.

[0068] Through the scheme of the embodiments of the present application, the SSB detection capability of the terminal can be determined, the SSB detection capability of the terminal can be reported, SSB transmission corresponding to the SSB detection capability of the terminal can be requested, and / or the SSB transmission capability of the network side device can be determined, so as to determine the SSB detection capability of the terminal side / the SSB transmission capability of the network side, and further to guarantee the SSB detection of the terminal.

[0069] In an optional implementation, the terminal can first determine the SSB detection capability of the terminal, then report the SSB detection capability of the terminal, and / or request SSB transmission corresponding to the SSB detection capability of the terminal.

[0070] In another optional implementation, the terminal can first report the SSB detection capability of the terminal, and then perform SSB detection based on the reported SSB detection capability.

[0071] In another optional implementation, the terminal can first request SSB transmission corresponding to the SSB detection capability of the terminal, and then perform SSB detection based on the requested SSB transmission.

[0072] In another optional implementation, the terminal can first determine the SSB detection capability of the terminal, and then perform detection or not on the SSB transmission of the network side device based on the determined SSB detection capability.

[0073] In another optional implementation, the terminal can first determine the SSB transmission capability of the network side device, and then perform SSB detection based on the determined SSB transmission capability.

[0074] In another optional implementation, the terminal can first determine the SSB transmission capability of the network side device, and then request SSB transmission corresponding to the SSB detection capability of the terminal based on the determined SSB transmission capability, that is, the requested SSB transmission needs to be supported by the network side device.

[0075] In another optional implementation, the terminal can first determine the SSB detection capability of the terminal and the SSB transmission capability of the network side device, and then select part of the SSB detection capability (such as selecting part of the supported SSB period, SBB structure, etc., and the part of the supported SSB period, SBB structure also needs to be supported by the network side device) based on the determined SSB detection capability and SSB transmission capability, and report the part of the capability, and / or request SSB transmission corresponding to the part of the capability.

[0076] In another optional implementation, the terminal can first determine the network side configured specific SSB transmission capability corresponding to the access prohibition configuration information, and then determine whether to perform corresponding SSB detection and whether to access the corresponding network based on the determined access prohibition configuration information.

[0077] It should be noted that for these optional implementations, the specific way of determining the SSB detection capability of the terminal can be referred to the description in the following embodiments, the specific reporting / requesting method can be referred to the description in the following embodiments, and the specific way of determining the SSB transmission capability of the network side device can be referred to the description in the following embodiments. The above implementations can be implemented alone, and some implementations can also be combined together.

[0078] Optionally, the SSB detection capability of the terminal can include but is not limited to at least one of the following:

[0079] - SSB period supported by the terminal; this can be understood as that the terminal has the capability of supporting detection of SSBs with a specific period, or has the capability of supporting detection of SSBs with multiple periods, or has the capability of supporting detection of SSBs with a period greater than or equal to a threshold, or has the capability of supporting detection of SSBs with a period less than or equal to a threshold, etc.; for example, a terminal capability is that it can initially search for a certain SSB in the cell search process, and the period of such SSB is greater than a certain value (such as 20 ms);

[0080] - SSB structure supported by the terminal; this can be understood as that the terminal has the capability of supporting detection of SSBs with a specific structure, and / or has the capability of supporting detection of SSBs with multiple structures; for example, a terminal capability is to receive SSBs with a specific SSB structure, such as an SSB structure supporting more than 20 physical resource blocks (PRB) frequency domain width or an SSB structure supporting more than 4 orthogonal frequency division multiplexing (OFDM) symbols;

[0081] - the terminal supports on demand SSB, i.e., the type of SSB supported by the terminal is on demand SSB; this can be understood as the terminal has the capability to support detecting on demand SSB; for example, a terminal capability is that the terminal supports on demand SSB (e.g., SSB that can be activated or deactivated) reception;

[0082] - the terminal supports non-on demand SSB, i.e., the type of SSB supported by the terminal is non-on demand SSB;

[0083] - the SSB power supported by the terminal; this can be understood as the terminal has the capability to support detecting SSB with at least one of the following: a transmission power / reception power, a transmission power / reception power greater than or equal to a threshold, or a transmission power / reception power less than or equal to a threshold; for example, a terminal capability is that the terminal supports SSB reception with two or more SSB powers; for another example, another terminal capability is that the terminal supports SSB reception with SSB power greater than a certain value;

[0084] - the SSB waveform supported by the terminal; this can be understood as the terminal has the capability to support detecting SSB with a specific one or more waveforms; for example, a terminal capability is that the terminal supports SSB reception with a Discrete Fourier Transform-spread OFDM (DFT-s-OFDM) waveform;

[0085] - the cyclic prefix (CP) length of SSB supported by the terminal; this can be understood as the terminal has the capability to support detecting SSB with a specific one or more CP lengths; for example, a terminal capability is that the terminal supports SSB reception with an extended CP (i.e., a CP longer than a normal CP length);

[0086] - the subcarrier spacing (SCS) size of SSB supported by the terminal; this can be understood as the terminal has the capability to support detecting SSB with a specific one or more SCS sizes; for example, a terminal capability is that the terminal supports SSB reception with a large SCS (e.g., larger than a normal SCS size or larger than a certain SCS threshold);

[0087] - Demodulation Reference Signal (DMRS) pattern of SSB supported by the terminal; this can be understood as the terminal has the capability to support detecting SSB with specific DMRS pattern(s);

[0088] - Coding of SSB supported by the terminal; this can be understood as the terminal has the capability to support detecting SSB with specific coding(s);

[0089] - SSB detection of the terminal in XDD configuration per SSB or per SSB group;

[0090] - SSB detection of the terminal in enhanced full duplex or sub-band full duplex configuration;

[0091] - SSB detection of the terminal in at least two levels;

[0092] Optionally, the SSB detection in at least two levels can satisfy at least one of the following:

[0093] ① The first level of SSB detection is to detect common SSB or part of common SSB, and the second or more levels of SSB detection is to detect SSB corresponding to the first feature or part of SSB corresponding to the first feature; the first feature can be understood as a specific feature;

[0094] ② The first level of SSB detection is to detect low-power SSB or part of low-power SSB, and the second or more levels of SSB detection is to detect normal-power SSB or part of normal-power SSB;

[0095] ③ The first level of SSB detection is to detect SSB for random access resource selection or part of SSB for random access resource selection, and the second or more levels of SSB detection is to detect SSB for measurement or part of SSB for measurement;

[0096] ④ The first level of SSB detection is to detect SSB on sync raster or part of SSB on sync raster, and the second or more levels of SSB detection is to detect SSB not on sync raster or part of SSB not on sync raster;

[0097] V. The first level of SSB detection is detecting a small bandwidth SSB or detecting a part of a small bandwidth SSB, and the second or more level of SSB detection is detecting a large bandwidth SSB or detecting a part of a large bandwidth SSB; here the small bandwidth and the large bandwidth can be set based on actual requirements, such as a bandwidth less than or equal to a certain threshold is a small bandwidth, and a bandwidth greater than the threshold is a large bandwidth;

[0098] VI. The first level of SSB detection is detecting a SSB for coarse synchronization or detecting a part of a SSB for coarse synchronization, and the second or more level of SSB detection is detecting a SSB for fine synchronization or detecting a part of a SSB for fine synchronization; for example, the coarse synchronization is a synchronization with a not very high time and / or frequency estimation accuracy, and the fine synchronization is a synchronization with a relatively higher time and / or frequency estimation accuracy.

[0099] VII. The terminal supports SSB detection of a number of sync rasters less than or equal to a first value; the first value can be set based on actual requirements, such as the number of sync rasters under a certain SSB step; this can be understood as the terminal supporting SSB detection of a reduced number of sync rasters (i.e., a smaller number of sync rasters to be monitored in a certain time period relative to the number of sync rasters under a certain SSB step);

[0100] VIII. The terminal supports SSB detection of a sync raster step greater than or equal to a second value; the second value can be set based on actual requirements, such as the number of sync rasters under a certain SSB step; the sync raster step can be understood as a frequency domain interval; this can be understood as the terminal supporting SSB detection of a sync raster step greater than a certain SSB step;

[0101] IX. The terminal supports SSB detection associated to on demand PRACH resources;

[0102] X. The terminal supports SSB detection on multiple subbands in a single cell; for example, there are different SSBs on multiple non-contiguous subbands in a cell, and the terminal supports detection of the multiple different SSBs;

[0103] XI. The terminal supports SSB detection on multiple BWPs in a single cell; for example, there are different SSBs on multiple non-contiguous BWPs in a cell, and the terminal supports detection of the multiple different SSBs;

[0104] XII. The terminal supports SSB detection on multiple frequency bands in a single cell; for example, there are different SSBs on multiple non-contiguous frequency bands in a cell, and the terminal supports detection of the multiple different SSBs;

[0105] - the terminal supports SSB detection with frequency hopping or time domain hopping pattern; the time domain hopping pattern is, for example, different groups of SSB index corresponding SSB transmission are sent in different time windows, and the corresponding frequency does not necessarily change; for example, when different SSB indexes have specific transmission patterns in different time windows or frequencies, the detection of such SSBs is a certain terminal capability;

[0106] - the terminal supports detection of forwarded SSBs; for example, SSBs can be forwarded by a Reconfigurable Intelligence Surface (RIS), a repeater, an Integrated Access and Backhaul (IAB) device, a tag, etc.

[0107] - the terminal supports detection of amplified SSBs; for example, SSBs can be amplified by a RIS / repeater / IAB / tag, etc.

[0108] - the terminal supports detection of reflected SSBs; for example, SSBs can be reflected by a RIS / repeater / IAB / tag, etc.

[0109] - the terminal supports simultaneous detection of SSBs on multiple sync rasters, i.e., the terminal has the capability of simultaneously detecting SSBs on multiple sync rasters;

[0110] - the terminal supports switching between multiple types of SSB detection, i.e., the terminal has the capability of switching between multiple types of SSB detection.

[0111] In this way, the definition / setting of various SSB detection capabilities can meet the needs of different terminal types, different application scenarios, and frequency bands for corresponding SSB detection, which helps the network to determine the number of terminals corresponding to the expected SSB and subsequently flexibly schedule resources for corresponding terminal types, so that the system resource utilization efficiency can be close to optimal.

[0112] Optionally, the reporting granularity of the SSB detection capability can meet, but is not limited to, at least one of the following:

[0113] (1) the reporting granularity of the SSB detection capability is a terminal; i.e., each terminal has or does not have one / multiple SSB detection capabilities; for example, the reporting method is Per UE / device reporting;

[0114] (2) The reporting granularity of the SSB detection capability is terminal type, i.e., terminals of the same type have the same SSB detection capability; for example, the reporting manner is Per UE / device type reporting; different types of terminals here can be selected from, but are not limited to, Reduced Capability (RedCap) scenario UE, Enhanced Mobile Broadband (eMBB) scenario UE, Ultra Reliable Low Latency Communication (URLLC) scenario UE, Machine Type Communication (MTC) scenario UE, Internet of Things (IoT) scenario UE, Extended Reality (XR) scenario UE, Non Terrestrial Network (NTN) scenario UE, etc.

[0115] (3) The reporting granularity of the SSB detection capability is the priority of the terminal, i.e., terminals of the same priority have the same SSB detection capability.

[0116] (4) The reporting granularity of the SSB detection capability is any one of the following: a single frequency band, a single frequency range FR, a single carrier, a combination of different frequency bands, a combination of different frequency ranges, a combination of different carriers; for example, each frequency band or combination of different frequency bands has the same SSB detection capability, i.e., corresponding independent SSB detection capability reporting; each FR or combination of different FRs has the same SSB detection capability, i.e., corresponding independent SSB detection capability reporting; each carrier or combination of different carriers has the same SSB detection capability, i.e., corresponding independent SSB detection capability reporting.

[0117] (5) The reporting granularity of the SSB detection capability is a combination of at least two of the following: frequency band, frequency range, carrier; for example, a combination of at least two of the frequency band, frequency range, and carrier corresponds to independent SSB detection capability reporting, i.e., has the same SSB detection capability.

[0118] (6) The reporting granularity of the SSB detection capability is the communication scenario; for example, the same scenario has or does not have a specific SSB detection capability.

[0119] (7) The reporting granularity of the SSB detection capability is SSB or SSB group; for example, when different SSB groups have different types (such as different periods), the terminal can report the corresponding SSB detection capability per SSB or per SSB group.

[0120] In this way, by considering different SSB types and the reporting granularity of the related detection capabilities, a balance can be achieved between the capability reporting signaling overhead and the capability reporting flexibility.

[0121] Optionally, the SSB transmission capability of the network-side device can include, but is not limited to, at least one of the following:

[0122] - the SSB period supported by the network-side device; this can be understood as the network-side device having the capability to support transmission of SSBs with a specific period, or having the capability to support transmission of SSBs with multiple periods, or having the capability to support transmission of SSBs with a period greater than or equal to a threshold, or having the capability to support transmission of SSBs with a period less than or equal to a threshold, etc.; for example, a network-side capability is to be able to transmit a certain SSB in the cell search process, and the period of this SSB is greater than a certain value (such as 20 ms);

[0123] - the SSB structure supported by the network-side device; this can be understood as the network-side device having the capability to support transmission of SSBs with a specific structure, and / or having the capability to support transmission of SSBs with multiple structures; for example, a network-side capability is to transmit SSBs with a specific SSB structure, such as an SSB structure supporting more than 20 PRB frequency domain widths or an SSB structure supporting more than 4 OFDM symbols;

[0124] - the network-side device supports on demand SSB, i.e., the type of SSB supported by the network-side device is on demand SSB; this can be understood as the network-side device having the capability to support transmission of on demand SSBs; for example, a network-side capability is that the network-side device supports transmission of on demand SSBs (such as SSBs that can be activated or deactivated);

[0125] - the network-side device supports non-on demand SSB, i.e., the type of SSB supported by the network-side device is non-on demand SSB;

[0126] - the SSB power supported by the network-side device; this can be understood as the network-side device having the capability to support transmission of SSBs with at least one transmission power / reception power, or having the capability to support transmission of SSBs with a transmission power / reception power greater than or equal to a threshold, or having the capability to support transmission of SSBs with a transmission power / reception power less than or equal to a threshold; for example, a network-side capability is that the network-side device supports SSB transmission with two or more SSB powers; for another example, another network-side capability is that the network-side device supports SSB transmission with an SSB power greater than a certain value;

[0127] - the SSB waveform supported by the network-side device; this can be understood as the network-side device has the capability to support the transmission of SSBs with a certain waveform or waveforms; for example, one network-side capability is that the network-side device supports the transmission of SSBs with DFT-s-OFDM waveform;

[0128] - the CP length of SSB supported by the network-side device; this can be understood as the network-side device has the capability to support the transmission of SSBs with a certain CP length or CP lengths; for example, one network-side capability is that the network-side device supports the transmission of SSBs with extended CP (i.e. CP longer than a normal CP length);

[0129] - the SCS length of SSB supported by the network-side device; this can be understood as the network-side device has the capability to support the transmission of SSBs with a certain SCS size or SCS sizes; for example, one network-side capability is that the network-side device supports the transmission of SSBs with large SCS (e.g. larger than a normal SCS size or larger than a certain SCS threshold);

[0130] - the DMRS pattern of SSB supported by the network-side device; this can be understood as the network-side device has the capability to support the transmission of SSBs with a certain DMRS pattern or DMRS patterns;

[0131] - the encoding manner of SSB supported by the network-side device; the encoding manner is for example the encoding of PBCH; this can be understood as the network-side device has the capability to support the transmission of SSBs with a certain encoding manner or encoding manners;

[0132] - the network-side device supports the transmission of SSBs under per-SSB or per-SSB-group XDD configuration;

[0133] - the network-side device supports the transmission of SSBs under enhanced full-duplex or sub-band full-duplex configuration;

[0134] - the network-side device supports at least two levels of SSB transmission;

[0135] Optionally, the at least two levels of SSB transmission can satisfy at least one of the following:

[0136] ① the first level of SSB transmission is the transmission of common SSB or the transmission of part of common SSB, and the second or more levels of SSB transmission is the transmission of SSB corresponding to a first feature or the transmission of part of SSB corresponding to the first feature; the first feature can be understood as a certain feature;

[0137] ② the first level of SSB transmission is transmission of low power consumption SSB or transmission of part of low power consumption SSB, and the second or more level of SSB transmission is transmission of normal power consumption SSB or transmission of part of normal power consumption SSB;

[0138] ③ the first level of SSB transmission is transmission of SSB for random access resource selection or transmission of part of SSB for random access resource selection, and the second or more level of SSB transmission is transmission of SSB for measurement or transmission of part of SSB for measurement;

[0139] ④ the first level of SSB transmission is transmission of SSB on sync raster or transmission of part of SSB on sync raster, and the second or more level of SSB transmission is transmission of SSB not on sync raster or transmission of part of SSB not on sync raster;

[0140] ⑤ the first level of SSB transmission is transmission of small bandwidth SSB or transmission of part of small bandwidth SSB, and the second or more level of SSB transmission is transmission of large bandwidth SSB or transmission of part of large bandwidth SSB; here, the small bandwidth and the large bandwidth can be set based on actual needs, such as bandwidth less than or equal to a certain threshold being small bandwidth, and bandwidth greater than the threshold being large bandwidth;

[0141] ⑥ the first level of SSB transmission is transmission of SSB for coarse synchronization or transmission of part of SSB for coarse synchronization, and the second or more level of SSB transmission is transmission of SSB for fine synchronization or transmission of part of SSB for fine synchronization; for example, the coarse synchronization is synchronization with not particularly high time and / or frequency estimation accuracy, and the fine synchronization is synchronization with relatively high time and / or frequency estimation accuracy.

[0142] - the network side device supports SSB transmission of a number of sync rasters less than or equal to a third value; the third value can be set based on actual needs, such as the number of sync rasters under a certain SSB step length; this can be understood as the network side device supporting SSB transmission of a reduced number of sync rasters (i.e., a smaller number of sync rasters to be monitored in a certain period of time relative to the number of sync rasters under a certain SSB step length);

[0143] - the network-side device supports SSB transmission with a sync raster step size larger than or equal to a fourth value; the fourth value can be set based on actual requirements, such as the number of sync rasters under a specific SSB step size; the sync raster step size can be understood as a frequency domain interval; this can be understood as that the network-side device supports transmission of SSBs with a sync raster step size larger than the sync raster step size of a specific SSB;

[0144] - the network-side device supports SSB transmission associated with on demand PRACH resources;

[0145] - the network-side device supports SSB transmission on multiple subbands of a single cell; for example, there are different SSBs on multiple non-contiguous subbands in a cell, and the network-side device supports transmission of the multiple different SSBs;

[0146] - the network-side device supports SSB transmission on multiple BWPs of a single cell; for example, there are different SSBs on multiple non-contiguous BWPs in a cell, and the network-side device supports transmission of the multiple different SSBs;

[0147] - the network-side device supports SSB transmission on multiple frequency bands of a single cell; for example, there are different SSBs on multiple non-contiguous frequency bands in a cell, and the network-side device supports transmission of the multiple different SSBs;

[0148] - the network-side device supports SSB transmission in a hopping or time-domain hopping mode; the time-domain hopping mode is, for example, that different groups of SSBs corresponding to SSB indexes are transmitted in different time windows, and the corresponding frequencies do not necessarily change; for example, when different SSB indexes have specific transmission mode situations in different time windows or frequencies, the transmission of such SSBs is a certain network-side device capability;

[0149] - the network-side device supports transmission of forwarded SSBs; for example, SSBs can be forwarded through RIS / repeater / IAB / Tag, etc.;

[0150] - the network-side device supports transmission of amplified SSBs; for example, SSBs can be amplified through RIS / repeater / IAB / Tag, etc.;

[0151] - the network-side device supports transmission of reflected SSBs; for example, SSBs can be reflected through RIS / repeater / IAB / Tag, etc.;

[0152] - the network-side device supports transmission of SSBs on multiple sync rasters simultaneously, i.e., the network-side device has the capability of transmitting SSBs on multiple sync rasters simultaneously;

[0153] The network-side device supports switching of multiple types of SSB transmission, i.e., the network-side device has the capability of switching of multiple types of SSB transmission.

[0154] Optionally, the granularity of the SSB transmission capability is an SSB or an SSB group, i.e., a single SSB or an SSB group has the same SSB transmission capability.

[0155] In an embodiment of the present application, the terminal can determine its SSB detection capability in an implicit manner. The determination of the SSB detection capability of the terminal can include at least one of the following:

[0156] (a) The terminal determines the SSB detection capability of the terminal based on at least one of the following: default information, protocol agreement, preconfigured information; for example, whether the terminal has a specific SSB detection capability can be defaulted, agreed by the protocol, or preconfigured (such as factory preconfiguration).

[0157] (b) The terminal determines the SSB detection capability of the terminal according to the priority of the terminal.

[0158] Optionally, the priority of the terminal can be at least one of the following: a priority defined by the core network, a priority defined by the RAN side, a priority defined based on the International Mobile Subscriber Identity (IMSI), and a priority defined based on the Temporary Mobile Subscription Identifier (TMSI) / P-TMSI. Before determining the SSB detection capability of the terminal, the priority of the terminal can be obtained first.

[0159] Optionally, the priority of the terminal can be the priority of the terminal indicated by the PRACH or Msg3.

[0160] Optionally, there is a corresponding relationship between different priorities and supported specific SSB detection capabilities. For example, the relevant configuration can be as shown in Table 1:

[0161] Table 1

[0162] (c) The terminal determines the SSB detection capability of the terminal according to the terminal type and / or service type of the terminal.

[0163] Optionally, before determining the SSB detection capability of the terminal, the terminal type and / or service type of the terminal can be obtained first. Different terminal types and supported SSB detection exist a corresponding relationship. For example, IoT terminals only support normal SSB (i.e. non-on demand SSB) detection, and eMBB terminals can support normal SSB and on demand SSB detection. For example, the related configuration can be as shown in Table 2 below:

[0164] Table 2

[0165] (d) The terminal determines the SSB detection capability of the terminal according to the capability level of the terminal.

[0166] Optionally, before determining the SSB detection capability of the terminal, the capability level of the terminal can be obtained first. The capability level of the terminal can be different terminal power levels (such as PC3, PC2, PC1, etc.), or different transmission modes (such as low-power transmission mode, high-power transmission mode), or different memory capabilities, etc. For example, the related definition of a certain capability level can be as shown in Table 3 below:

[0167] Table 3

[0168] Optionally, the capability level of different terminals and the supported specific SSB detection capability exist a corresponding relationship. For example, the higher the capability level, the larger the maximum SSB period that can be supported. For example, the related configuration can be as shown in Table 4 below:

[0169] Table 4

[0170] Optionally, the terminal can report its SSB detection capability in an implicit manner. The above reporting of the SSB detection capability of the terminal can include at least one of the following:

[0171] a) The terminal sends first information to the network side device, the first information being used to indicate the priority of the terminal, and the priority of the terminal being used to implicitly indicate the SSB detection capability of the terminal;

[0172] Optionally, the priority of the terminal can be at least one of the following: a priority defined by the core network, a priority defined by the RAN side, a priority defined based on IMSI, and a priority defined based on TMSI / P-TMSI.

[0173] Optionally, the priority of the terminal can be the terminal priority indicated by PRACH or Msg3.

[0174] Optionally, different priorities and supported specific SSB detection capabilities have a corresponding relationship. For example, the relevant configuration can be as shown in Table 1 above.

[0175] b) The terminal sends second information to the network side device, the second information being used to indicate the terminal type and / or service type of the terminal, the terminal type and / or service type of the terminal being used to implicitly indicate the SSB detection capability of the terminal;

[0176] Optionally, different terminal types and supported detected SSBs have a corresponding relationship. For example, an IoT terminal only supports detection of normal SSB (i.e., non-on demand SSB), and an eMBB terminal can support detection of normal SSB and on demand SSB. For example, the relevant configuration can be as shown in Table 2 above.

[0177] c) The terminal sends third information to the network side device, the third information being used to indicate the capability level of the terminal, the capability level of the terminal being used to implicitly indicate the SSB detection capability of the terminal.

[0178] Optionally, the capability level of the terminal can be different terminal power levels, or different transmission modes (such as low-power transmission mode, high-power transmission mode), or different memory capabilities, etc. Different terminal capability levels and supported specific SSB detection capabilities have a corresponding relationship. For example, the higher the capability level, the larger the maximum SSB period that can be supported. For example, the relevant configuration can be as shown in Table 4 above.

[0179] Optionally, before a), b) and c) above, the terminal can first determine its SSB detection capability.

[0180] In this way, by implicitly reporting / determining the corresponding SSB detection capability of the terminal, the signaling overhead of terminal capability reporting can be reduced. In addition, by determining the terminal capability to a certain extent, the network can determine the transmission of the relevant SSB and obtain the target user number of different SSBs, which helps network resource allocation and scheduling and provides system resource utilization efficiency.

[0181] In the embodiments of the present application, the terminal can explicitly report its SSB detection capability and / or request SSB transmission corresponding to its SSB detection capability in a variety of different ways.

[0182] Optionally, the above reporting of the SSB detection capability of the terminal, and / or, the request for SSB transmission corresponding to the SSB detection capability of the terminal can include:

[0183] The terminal reports the SSB detection capability of the terminal, and / or, requests SSB transmission corresponding to the SSB detection capability of the terminal by at least one of the following:

[0184] PRACH resource and / or information of PRACH resource; for example, the terminal can report its SSB detection capability or request SSB transmission corresponding to its SSB detection capability through PRACH resource corresponding to specific RO, PRACH preamble or feature combination with other features;

[0185] Wake-up signal (WUS);

[0186] Sounding reference signal (SRS);

[0187] Resource of Msg3 and / or information carried by Msg3; the Msg3 is, for example, Msg3 PUSCH;

[0188] Resource of MsgA and / or information carried by MsgA; the MsgA is, for example, entire MsgA or MsgA PUSCH;

[0189] First signal defined additionally; the first signal can be understood as a specific signal, that is, the terminal reports its SSB detection capability through the specific signal defined additionally, and / or requests SSB transmission corresponding to the SSB detection capability of the terminal;

[0190] Transmission time window of at least one of PRACH signal, WUS, SRS, Msg3 (such as Msg3 PUSCH), MsgA (such as MsgA PUSCH) and first signal; for example, when all uplink and downlink signals through RIS and uplink and downlink signals not through RIS are different time windows, the network can determine that the terminal sending the specific uplink signal (such as WUS signal) has SSB detection capability corresponding to the window based on the specific uplink signal received in the different time windows.

[0191] Radio resource control (RRC) signaling; for example, for a terminal in connected state, the related SSB detection capability can be reported on the normal RRC signaling of terminal capability report according to the granularity.

[0192] In this way, the SSB detection capability of the terminal can be flexibly reported by means of explicit signaling / signal, thereby helping the network to determine the transmission of the relevant SSB and obtain the target user number of different SSBs, helping the network to allocate and schedule resources, and improving the system resource utilization efficiency. Similarly, if a request for transmission of a specific SSB is made, the network can determine to start the transmission of the relevant SSB through the request, or to turn off the transmission of the relevant SSB without the request, thereby improving the energy efficiency.

[0193] Optionally, when the SSB detection capability is reported or the request for transmission of a specific SSB is made through the PRACH resource / information, the PRACH resource and / or the information of the PRACH resource can include at least one of the following:

[0194] - a random access preamble (such as a Random Access Preamble) or an index of a random access preamble (such as a Random Access Preamble index); for example, different Preambles / Preamble indexes and the SSB detection supported by the terminal have a corresponding relationship. For example, preamble index = [0, 9] indicates that the SSB detection with a period of 20 ms is supported; preamble index = [10, 19] indicates that the SSB detection with DFT-s-OFDM is supported; preamble index = [20, 29] indicates that the SSB detection with a period of 160 ms is supported;

[0195] - the location of the RO or the RO index; for example, different RO locations and the SSB detection supported have a corresponding relationship, or different RO indexes and the SSB detection supported have a corresponding relationship;

[0196] - the reference signal associated with the PRACH resource; for example, a corresponding relationship between the SSB detection capability and the reference signal associated with the PRACH resource can be introduced; for example, when the reference signal associated with the PRACH resource is CSI-RS 0, the network can consider that the terminal corresponding to the PRACH resource searched through the receiving beam (beam) corresponding to the CSI-RS 0 supports the detection of SSB with a period of 20 ms; when the reference signal associated with the PRACH resource is CSI-RS 1, the network can consider that the terminal corresponding to the PRACH resource searched through the receiving beam corresponding to the CSI-RS 1 supports the detection of SSB with a period of 160 ms;

[0197] - a signature ID corresponding to the PRACH resource (e.g., signature ID, which can be abbreviated as S-ID); for example, a correspondence between the SSB detection capability and the signature ID corresponding to the PRACH resource can be introduced, so as to determine the SSB detection capability supported by the terminal based on the signature ID corresponding to the PRACH resource.

[0198] Optionally, the signature ID corresponding to the PRACH resource can include at least one of the following:

[0199] a PRACH sequence, such as a specific PRACH sequence;

[0200] scrambling information of the PRACH sequence, such as scrambling information of a specific PRACH sequence;

[0201] interleaving information of the PRACH sequence, such as interleaving information of a specific PRACH sequence;

[0202] spreading information of the PRACH sequence, such as spreading information of a specific PRACH sequence;

[0203] a root sequence of the PRACH sequence, such as a root sequence of a specific PRACH sequence;

[0204] a cyclic shift of the PRACH sequence, such as a cyclic shift of a specific PRACH sequence;

[0205] an initialization ID of the PRACH sequence, such as an initialization ID of a specific PRACH sequence.

[0206] For example, when a certain S-ID of a reference signal associated with a PRACH is 0, the network can consider that the terminal corresponding to this PRACH supports SSBs with a period of 20 ms; when the S-ID of the reference signal of the searched PRACH is 1, the network can consider that the terminal corresponding to the searched PRACH supports SSBs with a period of 160 ms.

[0207] Optionally, when reporting the SSB detection capability or requesting specific SSB transmission through Msg3 (e.g., Msg3 PUSCH) resource / information, the resource of the Msg3 and / or the information carried by the Msg3 can include at least one of the following:

[0208] information bits or information fields in the Msg3; for example, the terminal SSB detection capability can be directly carried by information bits / fields in the Msg3 PUSCH; the information bits / fields can be repurposed specific fields, or introduced fields specially used for reporting the capability. Alternatively, the field can also be a bitmap for multiple capability reporting; wherein each bit represents the indication of one or more capabilities;

[0209] the logical channel identity (LCID) or enhanced logical channel identity (eLCID) of the Msg3; for example, different SSB detection capability reporting or specific SSB request information has a corresponding relationship with the LCID (or eLCID), that is, different LCIDs or eLCIDs are used to distinguish different SSB detection capabilities or specific SSB request information;

[0210] uplink control information multiplexed on the Msg3, such as indicating the SSB detection capability of the terminal and / or requesting corresponding SSB transmission by multiplexing the uplink control information on the Msg3 PUSCH;

[0211] the DMRS resource corresponding to the Msg3, such as indicating the SSB detection capability of the terminal and / or requesting corresponding SSB transmission by the DMRS resource of the Msg3 PUSCH;

[0212] the scrambling sequence of the Msg3, such as indicating the SSB detection capability of the terminal and / or requesting corresponding SSB transmission by the scrambling sequence of the Msg3 PUSCH;

[0213] the information attribute of the Msg3, such as indicating the SSB detection capability of the terminal and / or requesting corresponding SSB transmission by the information attribute of the Msg3 PUSCH.

[0214] Optionally, the information attribute of the Msg3 (such as the Msg3 PUSCH) can include at least one of the following:

[0215] 1) the time-frequency domain resource of the Msg3, such as different SSB detection capabilities having a corresponding relationship with the time-frequency domain resource of the Msg3 PUSCH, so as to indicate the corresponding SSB detection capability by means of the time-frequency domain resource of the Msg3 PUSCH;

[0216] 2) payload size of the Msg3; for example, different Msg3 PUSCH payload sizes are related to different Msg3 PUSCH contents, and different payload sizes of different Msg3 PUSCH contents can correspond to different SSB detection capabilities;

[0217] 3) type of the Msg3; for example, different Msg3 PUSCH types are related to different trigger events (i.e., reasons for random access), and different trigger events (i.e., reasons for random access) can correspond to different SSB detection capabilities.

[0218] Optionally, when the SSB detection capability is reported or the specific SSB transmission request is performed through the MsgA (such as the entire MsgA or the MsgA PUSCH) resource / information, the resource of the MsgA and / or the information carried by the MsgA can include at least one of the following:

[0219] information bits or information fields in the MsgA; for example, the terminal SSB detection capability can be directly carried through information bits / fields in the MsgA or the MsgA PUSCH. The information bits / fields can be repurpose specific fields or introduced fields specially used for reporting the capability. Optionally, the field can also be a bitmap for multiple capability reporting; wherein each bit represents the indication of one or more capabilities;

[0220] LCID or eLCID of the MsgA; for example, different SSB detection capability reporting or specific SSB request information has a corresponding relationship with the LCID (or eLCID), that is, different LCIDs or eLCIDs are used to distinguish different SSB detection capabilities or specific SSB request information;

[0221] information attribute of the MsgA, such as indicating the SSB detection capability of the terminal and / or requesting the corresponding SSB transmission through the information attribute of the MsgA or the MsgA PUSCH;

[0222] uplink control information multiplexed on the MsgA, such as indicating the SSB detection capability of the terminal and / or requesting the corresponding SSB transmission through the uplink control information multiplexed on the MsgA;

[0223] DMRS resource corresponding to the MsgA, such as indicating the SSB detection capability of the terminal and / or requesting the corresponding SSB transmission through the DMRS resource of the MsgA PUSCH;

[0224] - a scrambling sequence of the MsgA, such as a scrambling sequence of a MsgA PUSCH, to indicate an SSB detection capability of the terminal and / or to request a corresponding SSB transmission.

[0225] Optionally, the information attribute of the MsgA can comprise at least one of:

[0226] I) a time-frequency domain resource of the MsgA (such as a MsgA or a MsgA PUSCH); for example, multiple sets of MsgA resources can be independently configured for terminals supporting a specific SSB detection capability and terminals not supporting a specific SSB detection capability; at this time, the network can determine whether a terminal supports a specific SSB detection capability according to the MsgA resource used by the detected terminal;

[0227] II) a transmission opportunity group (such as a RO group) in which the MsgA is located; for example, in the MsgA configuration of 2-step random access (2-step RACH), two groups of PUSCH transmission opportunities, such as PO group A and PO group B, can be configured, PO group A is used by terminals supporting a specific SSB detection capability, and PO group B is used by terminals not supporting a specific SSB detection capability; at this time, the network can determine whether a terminal supports a specific SSB detection capability according to the PUSCH on the two PO groups. If there are multiple specific SSB capabilities, multiple PO groups can be configured accordingly.

[0228] In the embodiments of the present application, in addition to knowing whether the terminal has the capability of detecting a specific SSB, the network also needs to let the terminal know whether the specific network has the transmission capability of the specific SSB, or whether there is a corresponding SSB transmission possibility or transmission configuration, so as to avoid the terminal sending a reception corresponding to an SSB transmission that the network does not support to the network, thereby reducing signaling overhead and improving resource utilization.

[0229] Optionally, the above determination of the SSB transmission capability of the network side device can comprise at least one of:

[0230] (A) the terminal determines whether the network side device supports a specific SSB transmission and / or, in the case where the network side device supports a specific SSB transmission, determines the SSB transmission capability of the network side device according to the indication information of the network side device; for example, the network side device can indicate whether a current cell or multiple cells support a specific SSB transmission; for example, for the case of supporting a 2-level SSB, a first-level SSB can be used to indicate the type of a second-level SSB supported; for another example, when the SSB transmission is SIB1 transmission, the SSB can be used to indicate the type of the actual SIB1, such as whether it is on demand or a larger periodic or a specific waveform SSB transmission;

[0231] (B) The terminal determines whether the second cell supports a specific SSB transmission according to the related information of the first cell, and / or, in the case of determining that the second cell supports the specific SSB transmission, determines the SSB transmission capability of the second cell; the first cell and the second cell have an association relationship; for example, the first cell is a neighbor cell, and the second cell is a serving cell; or, the first cell is a serving cell, and the second cell is a neighbor cell; or, the first cell is a current cell, and the second cell is a target cell (such as a cell to which the terminal may switch or another cell to be added); for example, if the neighbor cell supports the specific SSB transmission, it can be indicated that the serving cell also supports the specific SSB transmission, and the SSB transmission capabilities of the neighbor cell and the serving cell can be the same or different; for another example, if the current cell supports the specific SSB transmission, it can be indicated that the target cell also supports the specific SSB transmission, and the SSB transmission capabilities of the current cell and the target cell can be the same or different;

[0232] (C) The terminal determines whether a second RAT of a network side device supports a specific SSB transmission according to a first RAT (Radio Access Technologies) of the network side device, and / or, in the case of determining that the second RAT supports the specific SSB transmission, determines the SSB transmission capability of the second RAT; one RAT refers to one standardized radio access technology, for example, 5G is the first RAT, and 6G is the second RAT, which serve the same terminal; the first RAT can indicate whether the second RAT supports a certain SSB transmission;

[0233] (D) The terminal determines whether the network side device supports a specific SSB transmission according to the time-frequency domain resource of the SSB transmission, and / or, in the case of determining that the network side device supports the specific SSB transmission, determines the SSB transmission capability of the network side device; for example, a specific SSB transmission is transmitted on a specific (exclusive) time-frequency domain resource, and the corresponding SSB transmission can be determined based on the time-frequency domain resource; for another example, different types of SSB transmissions can be transmitted on different sync rasters, or different types of SSB transmissions can be transmitted on the same sync raster with different offsets, and the corresponding SSB transmission can be determined based on the specific resource location;

[0234] (E) The terminal determines whether the network side device supports a specific SSB transmission according to the network information of the network side device, and / or, in the case where it is determined that the network side device supports the specific SSB transmission, determines the SSB transmission capability of the network side device; for example, the corresponding network side device can be indicated to support / not support the specific SSB transmission by using the network information, and different network information can correspond to different SSB transmission capabilities.

[0235] Optionally, the network information can include but is not limited to at least one of the following:

[0236] - the network side device has at least one of the following: one frequency band (such as a specific one band), one sub-band (such as a specific one sub-band), one frequency band combination (such as a specific one bandCombination), a group of frequency bands (such as a specific group of bands), a group of sub-bands (such as a specific group of sub-bands), a group of frequency band combinations (such as a specific group of subbandband);

[0237] - the network side device has one spectrum range (such as a specific one Radio Frequency (RF)) or a group of spectrum ranges (such as a specific group of RFs);

[0238] - the network side device has one carrier (such as a specific one carrier) or a group of carriers (such as a specific group of carriers);

[0239] - the cell of the network side device belongs to or does not belong to at least one of the following: a multi-band cell, a multi-sub-band cell, a multi-carrier cell, a multi-BWP cell;

[0240] - the cell of the network side device belongs to or does not belong to at least one of the following: a non-continuous multi-band cell, a non-continuous multi-sub-band cell, a non-continuous multi-carrier cell, a non-continuous multi-BWP cell;

[0241] - the network side device has one sync raster (such as a specific one sync raster) or a group of sync rasters (such as a specific group of sync rasters);

[0242] - the network of the network side device belongs to or does not belong to a terrestrial network;

[0243] - the network of the network side device belongs to or does not belong to a non-terrestrial network, or the network of the network side device belongs to or does not belong to a satellite network;

[0244] - the network of the network side device belongs to or does not belong to a cell-free network, or the network of the network side device belongs to or does not belong to a large cell network;

[0245] The network of the network-side device belongs to or does not belong to an energy-saving network; for example, the energy-saving network can support SSB transmission with a large period (such as a period of 160 ms).

[0246] In the embodiments of the present application, in order to avoid terminals that do not support a specific SSB transmission mode or do not expect to access a cell of the specific SSB transmission mode from camping on the cell, bar information of specific terminals and corresponding specific SSB period transmission modes can be configured at the network side. For example, for large-period SSB transmission, a terminal that detects SSBs every 20 ms detects the SSB, so that the terminal further demodulates the MIB or SIB1, and finally finds that the cell is not suitable for camping.

[0247] Optionally, the method in the embodiments of the present application can further include:

[0248] The terminal receives system information sent by the network-side device; the system information includes at least one of first indication information and second indication information; the first indication information is used to indicate that a first type of terminal is barred from camping, and the first type of terminal can be set, such as a specific / old version / conventional terminal; the second indication information is used to indicate whether a terminal supporting specific SSB detection is allowed to camp, and / or the second indication information is used to indicate whether the network-side device adopts specific SSB transmission. In this way, terminals that do not support a specific SSB transmission mode or do not expect to access a cell of the specific SSB transmission mode can be prevented from camping on the cell.

[0249] In some embodiments, specific (such as old version) terminals can be barred from camping by bar information in system information (such as MIB or SIB1), and it can be indicated in the MIB or SIB1 whether a terminal supporting specific SSB detection (such as a large SSB period) is allowed to camp, or whether the network adopts specific SSB (such as a large SSB period) transmission. In this case, for example, a terminal supporting large-period SSB transmission can ignore the bar information for specific (such as old version) terminals, and further detect whether there is information in the MIB or SIB1 allowing a terminal supporting a large SSB period to camp or whether the network adopts a large SSB period to transmit SSBs. If there is information allowing a terminal supporting a large SSB period to camp or the network adopts a large SSB period to transmit SSBs, the terminal supporting large-period SSB transmission can camp on the cell or further demodulate SIB1.

[0250] Please refer to FIG. 3, which is a flowchart of a communication method provided by the embodiments of the present application, the method is executed by a network-side device, as shown in FIG. 3, the method includes the following steps:

[0251] Step 31: the network-side device performs a second operation; the second operation can include at least one of the following: obtaining the SSB detection capability reported by the terminal, and / or obtaining the request for SSB transmission corresponding to the SSB detection capability of the terminal sent by the terminal; determining the SSB transmission capability of the network-side device; sending fourth information to the terminal, the fourth information being used to indicate whether the network-side device supports specific SSB transmission, and / or, in the case where the network-side device supports specific SSB transmission, indicating the SSB transmission capability of the network-side device; or the fourth information is used to configure specific SSB.

[0252] In the embodiments of the present application, the SSB transmission capability of the network-side device can be represented / understood as the SSB transmission configuration of the network-side device. The network-side device configures specific SSB, which means that the corresponding SSB transmission is supported.

[0253] Through the scheme of the embodiments of the present application, the SSB detection capability reported by the terminal can be obtained, the request for SSB transmission corresponding to the SSB detection capability of the terminal sent by the terminal can be obtained, the SSB transmission capability of the network-side device can be determined, and / or the indication / configuration of SSB transmission can be sent to the terminal, so as to determine the SSB detection capability of the terminal side / the SSB transmission capability of the network side, and then to guarantee the SSB detection of the terminal.

[0254] In an optional implementation, the network-side device can first obtain the SSB detection capability reported by the terminal, and / or obtain the request for SSB transmission corresponding to the SSB detection capability of the terminal sent by the terminal, and then perform corresponding SSB transmission to the terminal, such as SSB transmission according to the SSB period, SBB structure, etc. supported by the terminal.

[0255] In another optional implementation, the network-side device can first obtain the SSB detection capability reported by the terminal, and / or determine the SSB transmission capability of the network-side device, and then configure / reconfigure specific SSB to the terminal.

[0256] In another optional implementation, the network-side device can determine the SSB transmission capability of the network-side device, and then send indication information (i.e. the fourth information) to the terminal, the indication information indicating the SSB transmission capability of the network-side device.

[0257] In another optional implementation, the network-side device can send indication information (i.e. the fourth information) to the terminal, the indication information indicating the SSB transmission capability of the network-side device, and then perform SSB transmission based on the SSB transmission capability.

[0258] It should be noted that for these optional embodiments, the specific manner of acquiring the SSB detection capability reported by the terminal can be referred to the description in the following embodiments, the specific manner of acquiring the request of the SSB transmission of the terminal can be referred to the description in the following embodiments, and the specific manner of determining the SSB transmission capability of the network side device can be referred to the description in the following embodiments. The above embodiments can be implemented alone, and some embodiments can also be combined together.

[0259] Optionally, the SSB detection capability of the terminal can include but is not limited to at least one of the following:

[0260] - SSB period supported by the terminal; this can be understood as that the terminal has the capability of supporting the detection of SSBs with a specific period, or has the capability of supporting the detection of SSBs with multiple periods, or has the capability of supporting the detection of SSBs with a period greater than or equal to a threshold, or has the capability of supporting the detection of SSBs with a period less than or equal to a threshold, etc.; for example, a terminal capability is that the terminal can initially search for a certain SSB in the cell search process, and the period of the SSB is greater than a certain value (such as 20 ms);

[0261] - SSB structure supported by the terminal; this can be understood as that the terminal has the capability of supporting the detection of SSBs with a specific structure, and / or has the capability of supporting the detection of SSBs with multiple structures; for example, a terminal capability is that the terminal receives SSBs with a specific SSB structure, such as an SSB structure supporting more than 20 PRB frequency domain widths or an SSB structure supporting more than 4 OFDM symbols;

[0262] - on demand SSB supported by the terminal, i.e., the type of SSB supported by the terminal is on demand SSB; this can be understood as that the terminal has the capability of supporting the detection of on demand SSBs; for example, a terminal capability is that the terminal supports on demand SSB (such as SSBs that can be activated or deactivated) reception;

[0263] - non-on demand SSB supported by the terminal, i.e., the type of SSB supported by the terminal is non-on demand SSB;

[0264] - SSB power supported by the terminal; this can be understood as that the terminal has the capability of supporting the detection of SSBs with at least one transmission power / reception power, or has the capability of supporting the detection of SSBs with a transmission power / reception power greater than or equal to a threshold, or has the capability of supporting the detection of SSBs with a transmission power / reception power less than or equal to a threshold; for example, a terminal capability is that the terminal supports SSB reception with two or more SSB powers; for another example, another terminal capability is that the terminal supports SSB reception with an SSB power greater than a certain value.

[0265] -SSB waveform supported by the terminal; this can be understood as the terminal has the capability to support detecting SSB with specific one or more waveforms; for example, one terminal capability is that the terminal supports DFT-s-OFDM waveform based SSB reception;

[0266] -CP length of SSB supported by the terminal; this can be understood as the terminal has the capability to support detecting SSB with specific one or more CP lengths; for example, one terminal capability is that the terminal supports extended CP (i.e. CP longer than a certain normal CP length) based SSB reception;

[0267] -SCS size of SSB supported by the terminal; this can be understood as the terminal has the capability to support detecting SSB with specific one or more SCS sizes; for example, one terminal capability is that the terminal supports large SCS (e.g. larger than a certain normal SCS size or larger than a certain SCS threshold) based SSB reception;

[0268] -DMRS pattern of SSB supported by the terminal; this can be understood as the terminal has the capability to support detecting SSB with specific one or more DMRS patterns;

[0269] -encoding manner of SSB supported by the terminal; the encoding manner is for example the encoding of PBCH; this can be understood as the terminal has the capability to support detecting SSB with specific one or more encoding manners;

[0270] -SSB detection by the terminal under each XDD configuration corresponding to per SSB or per SSB group;

[0271] -SSB detection by the terminal under enhanced full duplex or sub-band full duplex configuration;

[0272] -SSB detection by the terminal under at least two levels;

[0273] Optionally, the SSB detection under at least two levels can satisfy at least one of the following:

[0274] ①the first level of SSB detection is to detect common SSB or to detect part of common SSB, and the second level or more levels of SSB detection is to detect SSB corresponding to a first feature or to detect part of SSB corresponding to the first feature; the first feature can be understood as a specific feature (feature);

[0275] ②the first level of SSB detection is to detect low-power SSB or to detect part of low-power SSB, and the second level or more levels of SSB detection is to detect normal-power SSB or to detect part of normal-power SSB;

[0276] ③ The first level of SSB detection is detecting SSBs for random access resource selection or part of detecting SSBs for random access resource selection, and the second or more levels of SSB detection is detecting SSBs for measurement or part of detecting SSBs for measurement;

[0277] ④ The first level of SSB detection is detecting SSBs on sync raster or part of detecting SSBs on sync raster, and the second or more levels of SSB detection is detecting SSBs not on sync raster or part of detecting SSBs not on sync raster;

[0278] ⑤ The first level of SSB detection is detecting SSBs of small bandwidth or part of detecting SSBs of small bandwidth, and the second or more levels of SSB detection is detecting SSBs of large bandwidth or part of detecting SSBs of large bandwidth; here, small bandwidth and large bandwidth can be set based on actual needs, such as bandwidth less than or equal to a certain threshold being small bandwidth, and bandwidth greater than the threshold being large bandwidth;

[0279] ⑥ The first level of SSB detection is detecting SSBs for coarse synchronization or part of detecting SSBs for coarse synchronization, and the second or more levels of SSB detection is detecting SSBs for fine synchronization or part of detecting SSBs for fine synchronization; for example, the coarse synchronization is synchronization with not particularly high time and / or frequency estimation accuracy, and the fine synchronization is synchronization with relatively higher time and / or frequency estimation accuracy.

[0280] - The terminal supports SSB detection of a number of sync rasters less than or equal to a first value; the first value can be set based on actual needs, such as the number of sync rasters under a certain SSB step; this can be understood as the terminal supporting SSB detection of a reduced number of sync rasters (i.e., a smaller number of sync rasters to be monitored within a certain time relative to the number of sync rasters under a certain SSB step);

[0281] - The terminal supports SSB detection of a sync raster step greater than or equal to a second value; the second value can be set based on actual needs, such as the number of sync rasters under a certain SSB step; the sync raster step can be understood as a frequency domain interval; this can be understood as the terminal supporting SSB detection of a sync raster step greater than a certain SSB sync raster step;

[0282] - The terminal supports SSB detection associated to on demand PRACH resources;

[0283] - the terminal supports SSB detection on multiple subbands in a single cell; for example, there are different SSBs on multiple non-contiguous subbands in a cell, and the terminal supports detecting the multiple different SSBs;

[0284] - the terminal supports SSB detection on multiple BWPs in a single cell; for example, there are different SSBs on multiple non-contiguous BWPs in a cell, and the terminal supports detecting the multiple different SSBs;

[0285] - the terminal supports SSB detection on multiple frequency bands in a single cell; for example, there are different SSBs on multiple non-contiguous frequency bands in a cell, and the terminal supports detecting the multiple different SSBs;

[0286] - the terminal supports SSB detection in a frequency hopping or time domain hopping mode; for example, when different SSB indexes have a specific transmission mode in different time windows or frequencies, this SSB detection is a certain terminal capability;

[0287] - the terminal supports detection of a forwarded SSB; for example, the SSB can be forwarded by a RIS / repeater / IAB / Tag, etc.

[0288] - the terminal supports detection of an amplified SSB; for example, the SSB can be amplified by a RIS / repeater / IAB / Tag, etc.

[0289] - the terminal supports detection of a reflected SSB; for example, the SSB can be reflected by a RIS / repeater / IAB / Tag, etc.

[0290] - the terminal supports detecting SSBs on multiple sync rasters simultaneously, i.e., the terminal has the capability of detecting SSBs on multiple sync rasters simultaneously.

[0291] - the terminal supports switching between multiple types of SSB detection, i.e., the terminal has the capability of switching between multiple types of SSB detection.

[0292] In this way, the definition / setting of various SSB detection capabilities can meet the needs of different terminal types, different application scenarios, and frequency bands for corresponding SSB detection, which helps the network to determine the number of terminals corresponding to the expected SSB and subsequently flexibly perform corresponding resource scheduling for the corresponding terminal types, so that the system resource utilization efficiency can be close to optimal.

[0293] Optionally, the reporting granularity of the SSB detection capability can meet at least one of the following, but is not limited to:

[0294] (1) The reporting granularity of the SSB detection capability is the terminal, i.e., each terminal has or does not have one / multiple SSB detection capabilities; for example, the reporting manner is Per UE / device reporting;

[0295] (2) The reporting granularity of the SSB detection capability is the terminal type, i.e., terminals of the same type have the same SSB detection capability; for example, the reporting manner is Per UE / device type reporting; here, different types of terminals can be selected from, but are not limited to, RedCap UE, eMBB UE, URLLC UE, MTC UE, IoT UE, XR UE, NTN UE, etc.

[0296] (3) The reporting granularity of the SSB detection capability is the priority of the terminal, i.e., terminals of the same priority have the same SSB detection capability.

[0297] (4) The reporting granularity of the SSB detection capability is any one of the following: a single frequency band, a single frequency range FR, a single carrier, a combination of different frequency bands, a combination of different frequency ranges, a combination of different carriers; for example, each frequency band or combination of different frequency bands has the same SSB detection capability, i.e., corresponding independent SSB detection capability reporting; each FR or combination of different FRs has the same SSB detection capability, i.e., corresponding independent SSB detection capability reporting; each carrier or combination of different carriers has the same SSB detection capability, i.e., corresponding independent SSB detection capability reporting.

[0298] (5) The reporting granularity of the SSB detection capability is a combination of at least two of the following: frequency band, frequency range, carrier; for example, a combination of at least two of the frequency band, frequency range, and carrier corresponds to independent SSB detection capability reporting, i.e., has the same SSB detection capability.

[0299] (6) The reporting granularity of the SSB detection capability is the communication scenario; for example, the same scenario has or does not have a specific SSB detection capability.

[0300] (7) The reporting granularity of the SSB detection capability is the SSB or SSB group; for example, when different SSB groups have different types (such as different periods), the terminal can report the corresponding SSB detection capability per SSB or per SSB group.

[0301] In this way, by considering different SSB types and the reporting granularity of the related detection capability, a balance can be achieved in terms of capability reporting signaling overhead and capability reporting flexibility.

[0302] Optionally, the SSB transmission capability of the network side device can include, but is not limited to, at least one of the following:

[0303] - the SSB periodicity supported by the network side device; this can be understood as the network side device has the capability to support transmission of SSBs with a certain periodicity, or has the capability to support transmission of SSBs with multiple periodicities, or has the capability to support transmission of SSBs with a periodicity greater than or equal to a threshold, or has the capability to support transmission of SSBs with a periodicity less than or equal to a threshold, etc.; for example, a network side capability is that it is able to transmit a certain SSB in the cell search procedure, and the periodicity of this SSB is greater than a certain value (such as 20 ms);

[0304] - the SSB structure supported by the network side device; this can be understood as the network side device has the capability to support transmission of SSBs with a certain structure, and / or has the capability to support transmission of SSBs with multiple structures; for example, a network side capability is that it is able to transmit SSBs with a certain SSB structure, such as an SSB structure that supports more than 20 PRB frequency domain widths or an SSB structure that supports more than 4 OFDM symbols;

[0305] - the network side device supports on demand SSB, i.e., the type of SSB supported by the network side device is on demand SSB; this can be understood as the network side device has the capability to support transmission of on demand SSBs; for example, a network side capability is that the network side device supports transmission of on demand SSBs (such as SSBs that can be activated or deactivated);

[0306] - the network side device supports non-on demand SSB, i.e., the type of SSB supported by the network side device is non-on demand SSB;

[0307] - the SSB power supported by the network side device; this can be understood as the network side device has the capability to support transmission of SSBs with at least one transmission power / reception power, or has the capability to support transmission of SSBs with a transmission power / reception power greater than or equal to a threshold, or has the capability to support transmission of SSBs with a transmission power / reception power less than or equal to a threshold; for example, a network side capability is that the network side device supports SSB transmission with two or more SSB powers; for another example, another network side capability is that the network side device supports SSB transmission with an SSB power greater than a certain value;

[0308] - the SSB waveform supported by the network side device; this can be understood as the network side device has the capability to support transmission of SSBs with a certain waveform or multiple waveforms; for example, a network side capability is that the network side device supports SSB transmission with a DFT-s-OFDM waveform;

[0309] - CP length of SSB supported by the network-side device; this can be understood as that the network-side device has the capability of supporting transmission of SSB with a specific one or more CP lengths; for example, one network-side capability is that the network-side device supports SSB transmission with extended CP (i.e. CP longer than a normal CP length);

[0310] - SCS length of SSB supported by the network-side device; this can be understood as that the network-side device has the capability of supporting transmission of SSB with a specific one or more SCS sizes; for example, one network-side capability is that the network-side device supports SSB transmission with large SCS (e.g. larger than a normal SCS size or larger than a certain SCS threshold);

[0311] - DMRS pattern of SSB supported by the network-side device; this can be understood as that the network-side device has the capability of supporting transmission of SSB with a specific one or more DMRS patterns;

[0312] - encoding manner of SSB supported by the network-side device; the encoding manner is for example the encoding of PBCH; this can be understood as that the network-side device has the capability of supporting transmission of SSB with a specific one or more encoding manners;

[0313] - SSB transmission of the network-side device under per-SSB or per-SSB-group corresponding XDD configuration;

[0314] - SSB transmission of the network-side device under enhanced full-duplex or sub-band full-duplex configuration;

[0315] - SSB transmission of the network-side device under at least two levels;

[0316] Optionally, the at least two levels of SSB transmission can satisfy at least one of the following:

[0317] ① the first level of SSB transmission is transmission of common SSB or transmission of part of common SSB, and the second or more levels of SSB transmission is transmission of SSB corresponding to a first feature or transmission of part of SSB corresponding to the first feature; the first feature can be understood as a specific feature (feature);

[0318] ② the first level of SSB transmission is transmission of low-power-consumption SSB or transmission of part of low-power-consumption SSB, and the second or more levels of SSB transmission is transmission of normal-power-consumption SSB or transmission of part of normal-power-consumption SSB;

[0319] ③ the first level of SSB transmission is transmission of SSB or part of SSB for random access resource selection, and the second or more level of SSB transmission is transmission of SSB or part of SSB for measurement;

[0320] ④ the first level of SSB transmission is transmission of SSB or part of SSB on sync raster, and the second or more level of SSB transmission is transmission of SSB or part of SSB not on sync raster;

[0321] ⑤ the first level of SSB transmission is transmission of SSB or part of SSB of small bandwidth, and the second or more level of SSB transmission is transmission of SSB or part of SSB of large bandwidth; here, small bandwidth and large bandwidth can be set based on actual needs, such as bandwidth less than or equal to a certain threshold as small bandwidth, and bandwidth greater than the threshold as large bandwidth;

[0322] ⑥ the first level of SSB transmission is transmission of SSB or part of SSB for coarse synchronization, and the second or more level of SSB transmission is transmission of SSB or part of SSB for fine synchronization; for example, the coarse synchronization is synchronization with not particularly high time and / or frequency estimation accuracy, and the fine synchronization is synchronization with relatively high time and / or frequency estimation accuracy.

[0323] - the network side device supports SSB transmission of a number of sync rasters less than or equal to a third value; the third value can be set based on actual needs, such as the number of sync rasters under a certain SSB step; this can be understood as that the network side device supports SSB transmission of a reduced number of sync rasters (i.e., a smaller number of sync rasters to be monitored in a certain period of time relative to the number of sync rasters under a certain SSB step);

[0324] - the network side device supports SSB transmission of a sync raster step greater than or equal to a fourth value; the fourth value can be set based on actual needs, such as the number of sync rasters under a certain SSB step; the sync raster step can be understood as a frequency domain interval; this can be understood as that the network side device supports transmission of SSB with a sync raster step greater than a certain SSB sync raster step;

[0325] - the network side device supports SSB transmission associated with on demand PRACH resource;

[0326] - The network-side device supports SSB transmission on multiple subbands in a single cell; for example, there are different SSBs on multiple non-contiguous subbands in a cell, and the network-side device supports transmission of the multiple different SSBs;

[0327] - The network-side device supports SSB transmission on multiple BWPs in a single cell; for example, there are different SSBs on multiple non-contiguous BWPs in a cell, and the network-side device supports transmission of the multiple different SSBs;

[0328] - The network-side device supports SSB transmission on multiple frequency bands in a single cell; for example, there are different SSBs on multiple non-contiguous frequency bands in a cell, and the network-side device supports transmission of the multiple different SSBs;

[0329] - The network-side device supports SSB transmission in a hopping or time-domain hopping mode; for example, different groups of SSB indexes are transmitted in different time windows, and the corresponding frequencies do not necessarily change; for example, when different SSB indexes have specific transmission mode scenarios in different time windows or frequencies, the transmission of such SSBs is a certain network-side device capability;

[0330] - The network-side device supports transmission of forwarded SSBs; for example, SSBs can be forwarded by RIS / repeater / IAB / Tag, etc.;

[0331] - The network-side device supports transmission of amplified SSBs; for example, SSBs can be amplified by RIS / repeater / IAB / Tag, etc.;

[0332] - The network-side device supports transmission of reflected SSBs; for example, SSBs can be reflected by RIS / repeater / IAB / Tag, etc.;

[0333] - The network-side device supports simultaneous transmission of SSBs on multiple sync rasters, i.e., the network-side device has the capability of simultaneously transmitting SSBs on multiple sync rasters;

[0334] - The network-side device supports switching between multiple types of SSB transmission, i.e., the network-side device has the capability of switching between multiple types of SSB transmission.

[0335] Optionally, the granularity of the SSB transmission capability is an SSB or a group of SSBs, i.e., a single SSB or a group of SSBs has the same SSB transmission capability.

[0336] Optionally, the above obtaining of the SSB detection capability reported by the terminal can include at least one of the following:

[0337] A) The network-side device receives first information sent by the terminal, the first information being used to indicate a priority of the terminal, the priority of the terminal being used to implicitly indicate an SSB detection capability of the terminal;

[0338] Optionally, the priority of the terminal can be at least one of a priority defined by a core network, a priority defined by a RAN side, a priority defined based on an IMSI, and a priority defined based on a TMSI / P-TMSI.

[0339] Optionally, the priority of the terminal can be a terminal priority indicated by a PRACH or a Msg3.

[0340] Optionally, different priorities and supported specific SSB detection capabilities have a corresponding relationship. For example, the related configuration can be as shown in Table 1 above.

[0341] B) The network-side device receives second information sent by the terminal, the second information being used to indicate a terminal type and / or a service type of the terminal, the terminal type and / or the service type of the terminal being used to implicitly indicate an SSB detection capability of the terminal;

[0342] Optionally, different terminal types and supported SSBs for detection have a corresponding relationship. For example, an IoT terminal only supports detection of a normal SSB (i.e., a non-on demand SSB), and an eMBB terminal can support detection of a normal SSB and an on demand SSB. For example, the related configuration can be as shown in Table 2 above.

[0343] C) The network-side device receives third information sent by the terminal, the third information being used to indicate a capability level of the terminal, the capability level of the terminal being used to implicitly indicate an SSB detection capability of the terminal.

[0344] Optionally, the capability level of the terminal can be different terminal power levels, or different transmission modes (such as a low-power consumption transmission mode and a high-power consumption transmission mode), or different memory capabilities, etc. Different capability levels of the terminal and supported specific SSB detection capabilities have a corresponding relationship. For example, the higher the capability level, the larger the maximum SSB period that can be supported. For example, the related configuration can be as shown in Table 4 above.

[0345] In this way, by implicitly reporting / determining the SSB detection capability corresponding to the terminal, the signaling overhead of terminal capability reporting can be reduced. In addition, by determining the terminal capability to a certain extent, the network can be assisted to determine the transmission of the related SSB and obtain the target user number of different SSBs, which is helpful for network resource allocation and scheduling, and provides system resource utilization efficiency.

[0346] In the embodiments of the present application, the terminal can explicitly report its SSB detection capability and / or request SSB transmission corresponding to its SSB detection capability in multiple different ways.

[0347] Optionally, the obtaining of the SSB detection capability reported by the terminal and / or the obtaining of the request for SSB transmission corresponding to the SSB detection capability of the terminal can comprise:

[0348] The network-side device receives the report of the SSB detection capability of the terminal and / or the request for SSB transmission corresponding to the SSB detection capability of the terminal by at least one of the following:

[0349] PRACH resource and / or information of PRACH resource; for example, the terminal can report its SSB detection capability or request SSB transmission corresponding to its SSB detection capability through PRACH resource corresponding to specific RO, PRACH preamble or feature combination combined with other features; here, the PRACH can be MsgA PRACH or Msg1 PRACH;

[0350] Wake-up signal (WUS);

[0351] Sounding reference signal (SRS);

[0352] Resource of Msg3 and / or information carried by Msg3; the Msg3 can be Msg3 PUSCH;

[0353] Resource of MsgA and / or information carried by MsgA; the MsgA can be the entire MsgA or MsgA PUSCH;

[0354] First signal defined additionally; the first signal can be understood as a specific signal, i.e., the SSB detection capability of the terminal is reported and / or the SSB transmission corresponding to the SSB detection capability of the terminal is requested through the specific signal defined additionally;

[0355] Transmission time window of at least one of PRACH signal, WUS, SRS, Msg3 (such as Msg3 PUSCH), MsgA (such as MsgA PUSCH) and first signal; for example, when all uplink and downlink signals through RIS are different from uplink and downlink signals not through RIS, the network can determine that the terminal sending the specific uplink signal (such as WUS signal) has SSB detection capability corresponding to the window based on the specific uplink signal received in the different time window.

[0356] Radio Resource Control, RRC, signaling. For example, for a terminal in a connected state, the terminal can report the SSB detection capability in the normal RRC signaling according to the granularity described above.

[0357] In this way, the SSB detection capability of the terminal can be flexibly reported by means of explicit signaling / signal, so as to help the network determine the transmission of the relevant SSB and obtain the target number of users of different SSBs, help the network resource allocation and scheduling, and improve the system resource utilization efficiency. Similarly, if a request for a specific SSB transmission, the network can determine to start the transmission of the relevant SSB through the request, or no request can turn off the transmission of the corresponding SSB, so as to improve the energy efficiency.

[0358] Optionally, the PRACH resource and / or the information of the PRACH resource comprises at least one of the following:

[0359] - a random access preamble (e.g., a Random Access Preamble) or an index of the random access preamble (e.g., a Random Access Preamble index); for example, different Preambles / Preamble indexes and SSB detection supported by the terminal have a corresponding relationship. For example: preamble index = [0, 9] indicates that the terminal supports SSB detection with a period of 20 ms; preamble index = [10, 19] indicates that the terminal supports DFT-s-OFDM SSB detection; preamble index = [20, 29] indicates that the terminal supports SSB detection with a period of 160 ms;

[0360] - a location of the RO or an RO index; for example, different RO locations and SSB detection supported by the terminal have a corresponding relationship, or different RO indexes and SSB detection supported by the terminal have a corresponding relationship;

[0361] - a reference signal associated with the PRACH resource; for example, a corresponding relationship between the SSB detection capability and the reference signal associated with the PRACH resource can be introduced; for example: when the reference signal associated with the PRACH resource is CSI-RS 0, the network can consider that the terminal corresponding to the PRACH resource searched by the receiving beam (beam) corresponding to the CSI-RS 0 supports detecting SSB with a period of 20 ms; when the reference signal associated with the PRACH resource is CSI-RS 1, the network can consider that the terminal corresponding to the PRACH resource searched by the receiving beam corresponding to the CSI-RS 1 supports detecting SSB with a period of 160 ms;

[0362] - a signature ID corresponding to the PRACH resource (e.g., signature ID, which can be abbreviated as S-ID); for example, a correspondence between the SSB detection capability and the signature ID corresponding to the PRACH resource can be introduced, so as to determine the SSB detection capability supported by the terminal based on the signature ID corresponding to the PRACH resource.

[0363] Optionally, the signature ID corresponding to the PRACH resource can include at least one of the following:

[0364] a PRACH sequence, such as a specific PRACH sequence;

[0365] scrambling information of the PRACH sequence, such as scrambling information of a specific PRACH sequence;

[0366] interleaving information of the PRACH sequence, such as interleaving information of a specific PRACH sequence;

[0367] spreading information of the PRACH sequence, such as spreading information of a specific PRACH sequence;

[0368] a root sequence of the PRACH sequence, such as a root sequence of a specific PRACH sequence;

[0369] a cyclic shift of the PRACH sequence, such as a cyclic shift of a specific PRACH sequence;

[0370] an initialization ID of the PRACH sequence, such as an initialization ID of a specific PRACH sequence.

[0371] - information bits or information fields in the Msg3; for example, the SSB detection capability of the terminal can be directly carried through information bits / fields in the Msg3 PUSCH; the information bits / fields can be repurposed specific fields, or introduced fields specially used for reporting the capability. Optionally, the field can also be a bitmap for multiple capability reporting; wherein each bit represents the indication of one or more capabilities;

[0372] - LCID or eLCID of the Msg3; for example, different SSB detection capability reporting or specific SSB request information has a corresponding relationship with the LCID (or eLCID), that is, different LCID or eLCID is used to distinguish different SSB detection capability or specific SSB request information;

[0373] - uplink control information multiplexed on the Msg3, such as uplink control information multiplexed on the Msg3 PUSCH to indicate the SSB detection capability of the terminal and / or request corresponding SSB transmission;

[0374] - the DMRS resource of the Msg3, e.g., the DMRS resource of the Msg3 PUSCH, is used to indicate the SSB detection capability of the terminal and / or request the corresponding SSB transmission;

[0375] - the scrambling sequence of the Msg3, e.g., the scrambling sequence of the Msg3 PUSCH, is used to indicate the SSB detection capability of the terminal and / or request the corresponding SSB transmission;

[0376] - the information attribute of the Msg3, e.g., the information attribute of the Msg3 PUSCH, is used to indicate the SSB detection capability of the terminal and / or request the corresponding SSB transmission.

[0377] Optionally, the information attribute of the Msg3 (e.g., the Msg3 PUSCH) can include at least one of the following:

[0378] 1) the time-frequency domain resource of the Msg3, e.g., different SSB detection capabilities are associated with the time-frequency domain resource of the Msg3 PUSCH, so as to indicate the corresponding SSB detection capability by means of the time-frequency domain resource of the Msg3 PUSCH;

[0379] 2) the payload size of the Msg3; for example, different Msg3 PUSCH payload sizes are related to the content of the Msg3 PUSCH, and the payload size of different Msg3 PUSCH contents can correspond to different SSB detection capabilities;

[0380] 3) the type of the Msg3; for example, different Msg3 PUSCH types are related to the corresponding triggering event (i.e., the reason for random access), and different triggering events (i.e., the reason for random access) can correspond to different SSB detection capabilities.

[0381] Optionally, the resource of the MsgA and / or the information carried by the MsgA includes at least one of the following:

[0382] - information bits or information fields in the MsgA; for example, the SSB detection capability of the terminal can be directly carried by the information bits / fields in the MsgA or the MsgA PUSCH; the information bits / fields can be repurpose specific fields or introduced fields specially used for reporting the capability. Optionally, the field can also be a bitmap for multiple capability reporting; wherein each bit represents the indication of one or more capabilities;

[0383] - LCID or eLCID of the MsgA; for example, different SSB detection capability reporting or specific SSB request information has a corresponding relationship with LCID (or eLCID), that is, different LCID or eLCID is used to distinguish different SSB detection capability or specific SSB request information;

[0384] - information attribute of the MsgA, such as indicating the SSB detection capability of the terminal through the information attribute of the MsgA or MsgA PUSCH, and / or requesting corresponding SSB transmission;

[0385] - uplink control information multiplexed on the MsgA, such as indicating the SSB detection capability of the terminal through the uplink control information multiplexed on the MsgA, and / or requesting corresponding SSB transmission;

[0386] - DMRS resource corresponding to the MsgA, such as indicating the SSB detection capability of the terminal through the DMRS resource of the MsgA PUSCH, and / or requesting corresponding SSB transmission;

[0387] - scrambling sequence of the MsgA, such as indicating the SSB detection capability of the terminal through the scrambling sequence of the MsgA PUSCH, and / or requesting corresponding SSB transmission.

[0388] Optionally, the information attribute of the MsgA can include at least one of the following:

[0389] I) time-frequency domain resource of the MsgA (such as MsgA or MsgA PUSCH); for example: multiple sets of MsgA resources can be independently configured for terminals supporting specific SSB detection capability and terminals not supporting specific SSB detection capability; at this time, the network can determine whether the terminal supports specific SSB detection according to the MsgA resource used by the detected terminal;

[0390] II) transmission opportunity group (such as RO group) where the MsgA is located; for example, two groups of PUSCH transmission opportunities, such as PO group A and PO group B, can be configured in the MsgA configuration of 2-step random access (2-step RACH), PO group A is used by terminals supporting specific SSB detection capability, and PO group B is used by terminals not supporting specific SSB detection capability; at this time, the network can determine whether a terminal supports specific SSB detection capability according to the PUSCH on the two PO groups. If there are multiple specific SSB capabilities, multiple PO groups can be configured accordingly.

[0391] Optionally, the above determination of the SSB transmission capability of the network side device can include at least one of the following:

[0392] - the network-side device determines, according to the related information of the first cell, whether the second cell supports a specific SSB transmission, and / or, in the case where it is determined that the second cell supports the specific SSB transmission, determines the SSB transmission capability of the second cell; the first cell and the second cell have an association relationship; for example, the first cell is a current cell, and the second cell is a target cell (such as a cell to which the terminal may switch or another cell to be added); if the current cell supports the specific SSB transmission, it can be indicated that the target cell also supports the specific SSB transmission, and the SSB transmission capabilities of the current cell and the target cell can be the same or different;

[0393] - the network-side device determines, according to the first RAT of the network-side device, whether the second RAT of the network-side device supports a specific SSB transmission, and / or, in the case where it is determined that the second RAT supports the specific SSB transmission, determines the SSB transmission capability of the second RAT.

[0394] - the network-side device determines, according to the time-frequency domain resource of the SSB transmission, whether the network-side device supports a specific SSB transmission, and / or, in the case where it is determined that the network-side device supports the specific SSB transmission, determines the SSB transmission capability of the network-side device; for example, a specific SSB transmission is transmitted on a specific (dedicated) time-frequency domain resource, and the corresponding SSB transmission can be determined based on the time-frequency domain resource; for another example, different types of SSB transmissions can be transmitted on different sync rasters, or different types of SSB transmissions can be transmitted on the same sync raster with different offsets, and the corresponding SSB transmission can be determined based on the specific resource location;

[0395] - the network-side device determines, according to the network information, whether the network-side device supports a specific SSB transmission, and / or, in the case where it is determined that the network-side device supports the specific SSB transmission, determines the SSB transmission capability of the network-side device; for example, the network information can be used to indicate that the corresponding network-side device supports / does not support a specific SSB transmission, and different network information can have a corresponding relationship with different SSB transmission capabilities.

[0396] Optionally, the network information can include but is not limited to at least one of the following:

[0397] - the network-side device has at least one of the following: one frequency band (such as a specific one band), one sub-band (such as a specific one sub-band), one frequency band combination (such as a specific one bandCombination), a group of frequency bands (such as a specific group of bands), a group of sub-bands (such as a specific group of sub-bands), and a group of frequency band combinations (such as a specific group of subbandband);

[0398] - the network-side device has one spectrum range (e.g., one specific RF) or a set of spectrum ranges (e.g., one specific set of RFs);

[0399] - the network-side device has one carrier (e.g., one specific carrier) or a set of carriers (e.g., one specific set of carriers);

[0400] - the cell of the network-side device belongs to or does not belong to at least one of the following: a multi-band cell, a multi-subband cell, a multi-carrier cell, a multi-BWP cell;

[0401] - the cell of the network-side device belongs to or does not belong to at least one of the following: a non-continuous multi-band cell, a non-continuous multi-subband cell, a non-continuous multi-carrier cell, a non-continuous multi-BWP cell;

[0402] - the network-side device has one sync raster (e.g., one specific sync raster) or a set of sync rasters (e.g., one specific set of sync rasters);

[0403] - the network of the network-side device belongs to or does not belong to a terrestrial network;

[0404] - the network of the network-side device belongs to or does not belong to a non-terrestrial network, or the network of the network-side device belongs to or does not belong to a satellite network;

[0405] - the network of the network-side device belongs to or does not belong to a cell-free network, or the network of the network-side device belongs to or does not belong to a large-cell network;

[0406] - the network of the network-side device belongs to or does not belong to an energy-saving network; for example, the energy-saving network can support SSB transmission with a large period (e.g., a period of 160 ms).

[0407] Optionally, the method in the embodiments of the present application can further include:

[0408] The network-side device sends a system message to the terminal; wherein the system message includes at least one of first indication information and second indication information; the first indication information is used to indicate that the first type of terminal is prohibited from camping; the second indication information is used to indicate whether the terminal supporting specific SSB detection is allowed to camp, and / or the second indication information is used to indicate whether the network-side device adopts specific SSB transmission. In this way, the terminal that does not support a specific SSB transmission mode or does not expect to access a cell of the specific SSB transmission mode can be prevented from camping in the cell.

[0409] The communication method provided in the embodiments of the present application can be performed by a communication device. The communication device is taken as an example to illustrate the information determining device provided in the embodiments of the present application.

[0410] The communication device provided in the embodiments of the present application can be a communication device or a component in the communication device, for example, a chip. The communication device can be a terminal, a network side device or a server, etc. For example, the terminal can include, but is not limited to, the types of the terminal 11 listed above, the network side device can include, but is not limited to, the types of the network side device 12 listed above, and the embodiments of the present application do not make specific limitations.

[0411] The communication device includes a receiving module, a sending module and a processing module. The receiving module, the sending module and the processing module can be implemented by software or by hardware. When implemented by hardware, the processing module can be implemented by a processor, for example, a general processor, a special processor, etc., such as a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), an artificial intelligent (AI) processor, a graphics processing unit (GPU), an application specific integrated circuit (ASIC), a network processor (NP), a field programmable gate array (FPGA) or other programmable logic devices, a gate circuit, a transistor, a discrete hardware component, etc. The receiving module and the sending module can be implemented by a communication interface, which can include one or more of a transceiver, a pin, a circuit, a bus, a radio frequency unit, etc.

[0412] Specifically, referring to FIG. 4, when the communication device is a terminal or a component in the terminal, the communication device 40 includes:

[0413] A first processing module 41 is configured to perform a first operation. The first operation includes at least one of the following:

[0414] determining the SSB detection capability of the terminal;

[0415] reporting the SSB detection capability of the terminal, and / or requesting the SSB transmission corresponding to the SSB detection capability of the terminal;

[0416] determining the SSB transmission capability of the network side device.

[0417] Optionally, the first processing module 41 is specifically configured to perform at least one of the following:

[0418] determining the SSB detection capability of the terminal based on at least one of the following: default information, protocol agreement, pre-configuration information;

[0419] determining the SSB detection capability of the terminal according to the priority of the terminal;

[0420] determining the SSB detection capability of the terminal according to the terminal type and / or service type of the terminal;

[0421] determining the SSB detection capability of the terminal according to the capability level of the terminal.

[0422] Optionally, the first processing module 41 is specifically configured to perform at least one of the following by the sending module:

[0423] sending first information to the network side device, the first information being used to indicate the priority of the terminal, the priority of the terminal being used to implicitly indicate the SSB detection capability of the terminal;

[0424] sending second information to the network side device, the second information being used to indicate the terminal type and / or service type of the terminal, the terminal type and / or service type of the terminal being used to implicitly indicate the SSB detection capability of the terminal;

[0425] sending third information to the network side device, the third information being used to indicate the capability level of the terminal, the capability level of the terminal being used to implicitly indicate the SSB detection capability of the terminal.

[0426] Optionally, the first processing module 41 is specifically configured to: the terminal reports the SSB detection capability of the terminal and / or requests the SSB transmission corresponding to the SSB detection capability of the terminal by at least one of the following:

[0427] PRACH resource and / or information of PRACH resource;

[0428] wake-up signal (WUS);

[0429] sounding reference signal (SRS);

[0430] resource of Msg3 and / or information carried by Msg3;

[0431] resource of MsgA and / or information carried by MsgA;

[0432] first signal defined additionally;

[0433] a transmission time window of at least one of a PRACH signal, a WUS, an SRS, a Msg3, a MsgA, and a first signal;

[0434] a radio resource control (RRC) signaling.

[0435] Optionally, the PRACH resource and / or the information of the PRACH resource comprises at least one of:

[0436] a random access preamble, or an index of the random access preamble;

[0437] a location of a random access occasion (RO), or an index of the RO;

[0438] a reference signal associated with the PRACH resource;

[0439] a feature identity corresponding to the PRACH resource.

[0440] Optionally, the feature identity comprises at least one of:

[0441] a PRACH sequence;

[0442] scrambling information of the PRACH sequence;

[0443] interleaving information of the PRACH sequence;

[0444] spreading information of the PRACH sequence;

[0445] a root sequence of the PRACH sequence;

[0446] a cyclic shift of the PRACH sequence;

[0447] an initialization identity of the PRACH sequence.

[0448] Optionally, the resource of the Msg3 and / or information carried by the Msg3 comprises at least one of:

[0449] information bits or information fields in the Msg3;

[0450] a logical channel identity (LCID) or an enhanced logical channel identity (eLCID) of the Msg3;

[0451] an uplink control information multiplexed on the Msg3;

[0452] a DMRS resource corresponding to the Msg3;

[0453] a scrambling sequence of the Msg3;

[0454] an information attribute of the Msg3.

[0455] Optionally, the information attribute of the Msg3 comprises at least one of:

[0456] a time-frequency domain resource of the Msg3;

[0457] a payload size of the Msg3;

[0458] a type of the Msg3.

[0459] Optionally, the resource of the MsgA and / or information carried by the MsgA comprises at least one of:

[0460] an information bit or an information field in the MsgA;

[0461] an LCID or an eLCID of the MsgA;

[0462] an information attribute of the MsgA;

[0463] an uplink control information multiplexed on the MsgA;

[0464] a DMRS resource corresponding to the MsgA;

[0465] a scrambling sequence of the MsgA.

[0466] Optionally, the information attribute of the MsgA comprises at least one of:

[0467] a time-frequency domain resource of the MsgA;

[0468] a transmission opportunity group in which the MsgA is located.

[0469] Optionally, the first processing module 41 is specifically configured to perform at least one of:

[0470] determine, according to the indication information of the network side device, whether the network side device supports specific SSB transmission, and / or, in a case where it is determined that the network side device supports specific SSB transmission, determine SSB transmission capability of the network side device;

[0471] determine, according to the related information of the first cell, whether the second cell supports specific SSB transmission, and / or, in a case where it is determined that the second cell supports specific SSB transmission, determine SSB transmission capability of the second cell;

[0472] determine, according to a first radio access technology (RAT) of the network side device, whether a second RAT of the network side device supports specific SSB transmission, and / or, in a case where it is determined that the second RAT supports specific SSB transmission, determine SSB transmission capability of the second RAT.

[0473] determining whether the network-side device supports a specific SSB transmission according to time-frequency domain resources of the SSB transmission, and / or determining SSB transmission capability of the network-side device in a case where it is determined that the network-side device supports the specific SSB transmission;

[0474] determining whether the network-side device supports a specific SSB transmission according to network information of the network-side device, and / or determining SSB transmission capability of the network-side device in a case where it is determined that the network-side device supports the specific SSB transmission.

[0475] Optionally, the network information comprises at least one of:

[0476] the network-side device has at least one of: one frequency band, one sub-band, one frequency band combination, a set of frequency bands, a set of sub-bands, a set of frequency band combinations;

[0477] the network-side device has one spectrum range or a set of spectrum ranges;

[0478] the network-side device has one carrier or a set of carriers;

[0479] a cell of the network-side device belongs to or does not belong to at least one of: a multi-frequency band cell, a multi-sub-band cell, a multi-carrier cell, a multi-BWP cell;

[0480] a cell of the network-side device belongs to or does not belong to at least one of: a non-continuous multi-frequency band cell, a non-continuous multi-sub-band cell, a non-continuous multi-carrier cell, a non-continuous multi-BWP cell;

[0481] the network-side device has one sync raster or a set of sync rasters;

[0482] a network of the network-side device belongs to or does not belong to a terrestrial network;

[0483] a network of the network-side device belongs to or does not belong to a non-terrestrial network, or a network of the network-side device belongs to or does not belong to a satellite network;

[0484] a network of the network-side device belongs to or does not belong to a cell free network, or a network of the network-side device belongs to or does not belong to a macro cell network;

[0485] a network of the network-side device belongs to or does not belong to an energy saving network.

[0486] Optionally, the communication device 40 comprises:

[0487] receive a system message sent by a network side device; wherein the system message comprises at least one of first indication information and second indication information; the first indication information is used to indicate that a first type of terminal is prohibited from camping on; the second indication information is used to indicate whether a terminal supporting specific SSB detection is allowed to camp on, and / or the second indication information is used to indicate whether the network side device adopts specific SSB transmission.

[0488] Optionally, the SSB detection capability of the terminal comprises at least one of:

[0489] an SSB period supported by the terminal;

[0490] an SSB structure supported by the terminal;

[0491] on demand SSB supported by the terminal;

[0492] non-on demand SSB supported by the terminal;

[0493] an SSB power supported by the terminal;

[0494] an SSB waveform supported by the terminal;

[0495] a CP length of an SSB supported by the terminal;

[0496] an SCS size of an SSB supported by the terminal;

[0497] a DMRS pattern of an SSB supported by the terminal;

[0498] an encoding mode of an SSB supported by the terminal;

[0499] per SSB or per SSB group corresponding XDD configuration supported by the terminal for SSB detection;

[0500] enhanced full duplex or sub-band full duplex configuration supported by the terminal for SSB detection;

[0501] at least two levels of SSB detection supported by the terminal;

[0502] a number of sync rasters less than or equal to a first value supported by the terminal for SSB detection;

[0503] a sync raster step size greater than or equal to a second value supported by the terminal for SSB detection;

[0504] SSB detection associated to on demand physical random access channel (PRACH) resource supported by the terminal;

[0505] The terminal supports SSB detection on multiple sub-bands of a single cell;

[0506] The terminal supports SSB detection on multiple bandwidth parts (BWPs) of a single cell;

[0507] The terminal supports SSB detection on multiple frequency bands of a single cell;

[0508] The terminal supports SSB detection in a hopping or time-domain hopping pattern;

[0509] The terminal supports detection of a forwarded SSB;

[0510] The terminal supports detection of an amplified SSB;

[0511] The terminal supports detection of a reflected SSB;

[0512] The terminal supports detection of SSBs on multiple sync rasters simultaneously;

[0513] The terminal supports switching between multiple types of SSB detection.

[0514] Optionally, the at least two levels of SSB detection satisfy at least one of the following:

[0515] The first level of SSB detection is detection of a common SSB or detection of a portion of a common SSB, and the second or more levels of SSB detection are detection of a SSB corresponding to a first feature or detection of a portion of a SSB corresponding to the first feature;

[0516] The first level of SSB detection is detection of a low-power SSB or detection of a portion of a low-power SSB, and the second or more levels of SSB detection are detection of a normal-power SSB or detection of a portion of a normal-power SSB;

[0517] The first level of SSB detection is detection of a SSB for random access resource selection or detection of a portion of a SSB for random access resource selection, and the second or more levels of SSB detection are detection of a SSB for measurement or detection of a portion of a SSB for measurement;

[0518] The first level of SSB detection is detection of a SSB on a sync raster or detection of a portion of a SSB on a sync raster, and the second or more levels of SSB detection are detection of a SSB not on a sync raster or detection of a portion of a SSB not on a sync raster;

[0519] The first-stage SSB detection is detecting a small-bandwidth SSB or a part of the small-bandwidth SSB, and the second-stage or more-stage SSB detection is detecting a large-bandwidth SSB or a part of the large-bandwidth SSB;

[0520] The first-stage SSB detection is detecting an SSB for coarse synchronization or a part of the SSB for coarse synchronization, and the second-stage or more-stage SSB detection is detecting an SSB for fine synchronization or a part of the SSB for fine synchronization.

[0521] Optionally, the reporting granularity of the SSB detection capability satisfies at least one of the following:

[0522] The reporting granularity of the SSB detection capability is a terminal;

[0523] The reporting granularity of the SSB detection capability is a terminal type;

[0524] The reporting granularity of the SSB detection capability is a priority of a terminal;

[0525] The reporting granularity of the SSB detection capability is any one of the following: a single frequency band, a single frequency range, a single carrier, a combination of different frequency bands, a combination of different frequency ranges, a combination of different carriers;

[0526] The reporting granularity of the SSB detection capability is a combination of at least two of the following: a frequency band, a frequency range, and a carrier;

[0527] The reporting granularity of the SSB detection capability is a communication scenario;

[0528] The reporting granularity of the SSB detection capability is an SSB or an SSB group.

[0529] Optionally, the SSB transmission capability of the network-side device includes at least one of the following:

[0530] An SSB period supported by the network-side device;

[0531] An SSB structure supported by the network-side device;

[0532] The network-side device supports on demand SSB;

[0533] The network-side device supports non-on demand SSB;

[0534] An SSB power supported by the network-side device;

[0535] An SSB waveform supported by the network-side device;

[0536] A CP length of an SSB supported by the network-side device;

[0537] a length of SCS of the SSB supported by the network-side device;

[0538] a DMRS pattern of the SSB supported by the network-side device;

[0539] an encoding manner of the SSB supported by the network-side device;

[0540] the network-side device supports SSB transmission in per SSB or per SSB group corresponding to XDD configuration;

[0541] the network-side device supports SSB transmission in enhanced full duplex or sub-band full duplex configuration;

[0542] the network-side device supports at least two levels of SSB transmission;

[0543] the network-side device supports SSB transmission of a sync raster number less than or equal to a third value;

[0544] the network-side device supports SSB transmission of a sync raster step greater than or equal to a fourth value;

[0545] the network-side device supports SSB transmission associated to on demand PRACH resource;

[0546] the network-side device supports SSB transmission on multiple sub-bands of a single cell;

[0547] the network-side device supports SSB transmission on multiple BWPs of a single cell;

[0548] the network-side device supports SSB transmission on multiple frequency bands of a single cell;

[0549] the network-side device supports SSB transmission in hopping or time domain hopping mode;

[0550] the network-side device supports transmission of a repeated SSB;

[0551] the network-side device supports transmission of an amplified SSB;

[0552] the network-side device supports transmission of a reflected SSB;

[0553] the network-side device supports transmission of SSB on multiple sync rasters simultaneously;

[0554] the network-side device supports switching of multiple types of SSB transmission.

[0555] Optionally, granularity of the SSB transmission capability is SSB or SSB group.

[0556] The communication apparatus provided by the embodiments of the present application can implement each process of the method embodiments shown in FIG. 2 and achieve the same technical effects. To avoid repetition, details are not described herein.

[0557] Referring to FIG. 5, when the communication apparatus is a network-side device or a component in the network-side device, the communication apparatus 50 includes:

[0558] A second processing module 51 configured to perform a second operation; wherein the second operation includes at least one of the following:

[0559] obtaining an SSB detection capability reported by a terminal, and / or obtaining a request for SSB transmission corresponding to the SSB detection capability of the terminal sent by the terminal;

[0560] determining an SSB transmission capability of the network-side device;

[0561] sending fourth information to the terminal, the fourth information being used to indicate whether the network-side device supports a specific SSB transmission, and / or, in the case where the network-side device supports the specific SSB transmission, indicating the SSB transmission capability of the network-side device; or the fourth information being used to configure a specific SSB.

[0562] Optionally, the second processing module 51 is specifically configured to perform at least one of the following by means of the receiving module:

[0563] receiving first information sent by the terminal, the first information being used to indicate a priority of the terminal, the priority of the terminal being used to implicitly indicate the SSB detection capability of the terminal;

[0564] receiving second information sent by the terminal, the second information being used to indicate a terminal type and / or a service type of the terminal, the terminal type and / or the service type of the terminal being used to implicitly indicate the SSB detection capability of the terminal;

[0565] receiving third information sent by the terminal, the third information being used to indicate a capability level of the terminal, the capability level of the terminal being used to implicitly indicate the SSB detection capability of the terminal.

[0566] Optionally, the second processing module 51 is specifically configured to:

[0567] receive the SSB detection capability reported by the terminal, and / or receive the request for SSB transmission corresponding to the SSB detection capability of the terminal sent by the terminal by at least one of the following:

[0568] a PRACH resource and / or information of the PRACH resource;

[0569] a wake-up signal (WUS);

[0570] Sounding Reference Signal, SRS;

[0571] resource of Msg3 and / or information carried by Msg3;

[0572] resource of MsgA and / or information carried by MsgA;

[0573] first signal defined additionally;

[0574] transmission time window of at least one of PRACH signal, WUS, SRS, Msg3, MsgA and first signal;

[0575] RRC signaling.

[0576] Optionally, the PRACH resource and / or information of PRACH resource comprises at least one of:

[0577] random access preamble, or index of random access preamble;

[0578] position of random access occasion, RO, or index of RO;

[0579] reference signal associated with PRACH resource;

[0580] feature identity corresponding to PRACH resource.

[0581] Optionally, the feature identity comprises at least one of:

[0582] PRACH sequence;

[0583] scrambling information of PRACH sequence;

[0584] interleaving information of PRACH sequence;

[0585] spreading information of PRACH sequence;

[0586] root sequence of PRACH sequence;

[0587] cyclic shift of PRACH sequence;

[0588] initialization identity of PRACH sequence.

[0589] Optionally, the resource of Msg3 and / or information carried by Msg3 comprises at least one of:

[0590] information bit or information field in the Msg3;

[0591] LCID or eLCID of the Msg3;

[0592] uplink control information multiplexed on the Msg3;

[0593] DMRS resource corresponding to the Msg3;

[0594] scrambling sequence of the Msg3;

[0595] information attribute of the Msg3.

[0596] Optionally, the information attribute of the Msg3 includes at least one of:

[0597] time-frequency domain resource of the Msg3;

[0598] payload size of the Msg3;

[0599] type of the Msg3.

[0600] Optionally, the resource of the MsgA and / or information carried by the MsgA includes at least one of:

[0601] information bit or information field in the MsgA;

[0602] LCID or eLCID of the MsgA;

[0603] information attribute of the MsgA;

[0604] uplink control information multiplexed on the MsgA;

[0605] DMRS resource corresponding to the MsgA;

[0606] scrambling sequence of the MsgA.

[0607] Optionally, the information attribute of the MsgA includes at least one of:

[0608] time-frequency domain resource of the MsgA;

[0609] transmission opportunity group in which the MsgA is located.

[0610] Optionally, the second processing module 51 is specifically configured to perform at least one of:

[0611] determine whether the second cell supports specific SSB transmission according to the related information of the first cell, and / or, in the case of determining that the second cell supports specific SSB transmission, determine the SSB transmission capability of the second cell;

[0612] determining whether the network-side device supports a specific SSB transmission according to a first RAT of the network-side device, and / or determining a SSB transmission capability of the network-side device in a case where it is determined that the network-side device supports a specific SSB transmission according to the first RAT of the network-side device;

[0613] determining whether the network-side device supports a specific SSB transmission according to a time-frequency domain resource of the SSB transmission, and / or determining a SSB transmission capability of the network-side device in a case where it is determined that the network-side device supports a specific SSB transmission according to the time-frequency domain resource of the SSB transmission;

[0614] determining whether the network-side device supports a specific SSB transmission according to network information, and / or determining a SSB transmission capability of the network-side device in a case where it is determined that the network-side device supports a specific SSB transmission according to the network information.

[0615] Optionally, the network information comprises at least one of:

[0616] the network-side device has at least one of: one frequency band, one sub-band, one frequency band combination, a set of frequency bands, a set of sub-bands, a set of frequency band combinations;

[0617] the network-side device has one spectrum range or a set of spectrum ranges;

[0618] the network-side device has one carrier or a set of carriers;

[0619] a cell of the network-side device belongs to or does not belong to at least one of: a multi-frequency band cell, a multi-sub-band cell, a multi-carrier cell, a multi-BWP cell;

[0620] a cell of the network-side device belongs to or does not belong to at least one of: a non-continuous multi-frequency band cell, a non-continuous multi-sub-band cell, a non-continuous multi-carrier cell, a non-continuous multi-BWP cell;

[0621] the network-side device has one sync raster or a set of sync rasters;

[0622] a network of the network-side device belongs to or does not belong to a terrestrial network;

[0623] a network of the network-side device belongs to or does not belong to a non-terrestrial network, or a network of the network-side device belongs to or does not belong to a satellite network;

[0624] a network of the network-side device belongs to or does not belong to a cell free network, or a network of the network-side device belongs to or does not belong to a macro cell network;

[0625] a network of the network-side device belongs to or does not belong to an energy saving network.

[0626] Optionally, the communication device 50 comprises:

[0627] a sending module, configured to send a system message to the terminal; wherein the system message comprises at least one of first indication information and second indication information; the first indication information is used to indicate that the first type of terminal is prohibited from camping on; the second indication information is used to indicate whether the terminal supporting specific SSB detection is allowed to camp on, and / or the second indication information is used to indicate whether the network side device adopts specific SSB transmission.

[0628] Optionally, the SSB detection capability of the terminal comprises at least one of:

[0629] the SSB period supported by the terminal;

[0630] the SSB structure supported by the terminal;

[0631] the on demand SSB supported by the terminal;

[0632] the non-on demand SSB supported by the terminal;

[0633] the SSB power supported by the terminal;

[0634] the SSB waveform supported by the terminal;

[0635] the CP length of the SSB supported by the terminal;

[0636] the SCS length of the SSB supported by the terminal;

[0637] the DMRS mode of the SSB supported by the terminal;

[0638] the encoding mode of the SSB supported by the terminal;

[0639] the SSB detection under per SSB or per SSB group corresponding XDD configuration supported by the terminal;

[0640] the SSB detection under enhanced full duplex or sub-band full duplex configuration supported by the terminal;

[0641] the SSB detection of at least two levels supported by the terminal;

[0642] the SSB detection of a sync raster number less than or equal to a first value supported by the terminal;

[0643] the SSB detection of a sync raster step greater than or equal to a second value supported by the terminal;

[0644] The terminal supports SSB detection associated to on demand PRACH resource;

[0645] The terminal supports SSB detection on multiple subbands of a single cell;

[0646] The terminal supports SSB detection on multiple BWPs of a single cell;

[0647] The terminal supports SSB detection on multiple frequency bands of a single cell;

[0648] The terminal supports SSB detection in hopping or time-domain hopping mode;

[0649] The terminal supports detection of forwarded SSB;

[0650] The terminal supports detection of amplified SSB;

[0651] The terminal supports detection of reflected SSB;

[0652] The terminal supports detection of SSB on multiple sync rasters simultaneously;

[0653] The terminal supports switching of multiple types of SSB detection.

[0654] Optionally, the reporting granularity of the SSB detection capability satisfies at least one of the following:

[0655] The reporting granularity of the SSB detection capability is a terminal;

[0656] The reporting granularity of the SSB detection capability is a terminal type;

[0657] The reporting granularity of the SSB detection capability is a priority of a terminal;

[0658] The reporting granularity of the SSB detection capability is any one of the following: a single frequency band, a single frequency range, a single carrier, a combination of different frequency bands, a combination of different frequency ranges, a combination of different carriers;

[0659] The reporting granularity of the SSB detection capability is a combination of at least two of the following: a frequency band, a frequency range, a carrier;

[0660] The reporting granularity of the SSB detection capability is a communication scenario;

[0661] The reporting granularity of the SSB detection capability is an SSB or an SSB group.

[0662] Optionally, the SSB transmission capability of the network side device includes at least one of the following:

[0663] The SSB period supported by the network side device;

[0664] a SSB structure supported by the network-side device;

[0665] an on demand SSB supported by the network-side device;

[0666] a non-on demand SSB supported by the network-side device;

[0667] a SSB power supported by the network-side device;

[0668] a SSB waveform supported by the network-side device;

[0669] a CP length of a SSB supported by the network-side device;

[0670] an SCS length of a SSB supported by the network-side device;

[0671] a DMRS pattern of a SSB supported by the network-side device;

[0672] an encoding manner of a SSB supported by the network-side device;

[0673] a SSB transmission under a per-SSB or per-SSB-group corresponding XDD configuration supported by the network-side device;

[0674] a SSB transmission under an enhanced full duplex or sub-band full duplex configuration supported by the network-side device;

[0675] a SSB transmission of at least two levels supported by the network-side device;

[0676] a SSB transmission of a sync raster number less than or equal to a third value supported by the network-side device;

[0677] a SSB transmission of a sync raster step greater than or equal to a fourth value supported by the network-side device;

[0678] a SSB transmission associated to an on demand PRACH resource supported by the network-side device;

[0679] a SSB transmission on multiple sub-bands of a single cell supported by the network-side device;

[0680] a SSB transmission on multiple BWPs of a single cell supported by the network-side device;

[0681] a SSB transmission on multiple frequency bands of a single cell supported by the network-side device;

[0682] a SSB transmission of a hopping or time-domain hopping pattern supported by the network-side device;

[0683] the network-side device supports transmission of the forwarded SSBs;

[0684] the network-side device supports transmission of the amplified SSBs;

[0685] the network-side device supports transmission of the reflected SSBs;

[0686] the network-side device supports transmission of the SSBs on multiple sync rasters simultaneously;

[0687] the network-side device supports switching between multiple types of SSB transmission.

[0688] The communication apparatus provided by the embodiments of the present application can implement each process of the method embodiment shown in FIG. 3 and achieve the same technical effects. To avoid repetition, details are not described herein.

[0689] As shown in FIG. 6, the embodiments of the present application further provide a communication device 60, which includes a processor 61 and a memory 62, and the memory 62 stores programs or instructions executable on the processor 61. For example, when the communication device 60 is a terminal, the programs or instructions are executed by the processor 61 to implement each step of the communication method embodiment shown in FIG. 2 and achieve the same technical effects. When the communication device 60 is a network-side device, the programs or instructions are executed by the processor 61 to implement each step of the communication method embodiment shown in FIG. 3 and achieve the same technical effects. To avoid repetition, details are not described herein.

[0690] The embodiments of the present application further provide a terminal, which includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run programs or instructions to implement the steps in the method embodiment shown in FIG. 2. The terminal embodiment corresponds to the terminal-side method embodiment described above, and each implementation process and implementation manner of the method embodiment described above can be applied to the terminal embodiment and achieve the same technical effects. The terminal can be the communication apparatus shown in FIG. 4.

[0691] Specifically, FIG. 7 is a schematic diagram of a hardware structure of a terminal for implementing the embodiments of the present application.

[0692] The terminal 700 includes, but is not limited to, at least part of the following components: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710, etc.

[0693] Those skilled in the art can understand that the terminal 700 can also include a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected to the processor 710 through a power management system, so that the power management system can realize the functions of managing charging, discharging and power consumption management. The terminal structure shown in FIG. 7 does not constitute a limitation on the terminal, and the terminal can include more or fewer components than the illustrated components, or combine certain components, or different component arrangements, which are not described here.

[0694] It should be understood that in the embodiments of the present application, the input unit 704 can include a graphics processor 7041 and a microphone 7042, and the graphics processor 7041 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 706 can include a display panel 7061, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 707 includes at least one of a touch panel 7071 and other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 can include two parts of a touch detection device and a touch controller. The other input devices 7072 can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), trackballs, mice, joysticks, which are not described here.

[0695] In the embodiments of the present application, after the radio frequency unit 701 receives the downlink data from the network side device, it can be transmitted to the processor 710 for processing. In addition, the radio frequency unit 701 can send uplink data to the network side device. Generally, the radio frequency unit 701 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0696] The memory 709 can be used to store software programs or instructions and various data. The memory 709 can mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area can store an operating system, application programs or instructions required by at least one function (such as a sound playing function, an image playing function, etc.), and the like. In addition, the memory 709 can include a volatile memory or a non-volatile memory. The non-volatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a Random Access Memory (RAM), a Static RAM (SRAM), a Dynamic RAM (DRAM), a Synchronous DRAM (SDRAM), a Double Data Rate SDRAM (DDR SDRAM), an Enhanced SDRAM (ESDRAM), a Synch link DRAM (SLDRAM), and a Direct Rambus RAM (DRRAM). The memory 709 in the embodiments of the present application includes but is not limited to these and any other suitable types of memory.

[0697] The processor 710 can include one or more processing units; optionally, the processor 710 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and an application program, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 710.

[0698] The processor 710 is configured to perform a first operation; wherein the first operation includes at least one of the following: determining an SSB detection capability of a terminal; reporting the SSB detection capability of the terminal, and / or requesting an SSB transmission corresponding to the SSB detection capability of the terminal; and determining an SSB transmission capability of a network side device.

[0699] It can be understood that the implementation process of each implementation mode mentioned in the embodiment can refer to the related description of the method embodiment shown in FIG. 2, and achieve the same or corresponding technical effects. To avoid repetition, details are not described here.

[0700] The embodiment of the application further provides a network side device, comprising a processor and a communication interface, the communication interface and the processor are coupled, the processor is used to run programs or instructions, and the steps of the method embodiment shown in FIG. 3 are realized. The network side device embodiment corresponds to the network side device method embodiment described above. Each implementation process and implementation mode of the method embodiment described above can be applied to the network side device embodiment, and the same technical effects can be achieved.

[0701] Specifically, the embodiment of the application further provides a network side device, which can be a communication device shown in FIG. 5. As shown in FIG. 8, the network side device 80 comprises an antenna 81, a radio frequency device 82, a baseband device 83, a processor 84 and a memory 85. The antenna 81 is connected with the radio frequency device 82. In the uplink direction, the radio frequency device 82 receives information through the antenna 81, and sends the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes the information to be sent and sends it to the radio frequency device 82. The radio frequency device 82 processes the received information and sends it out through the antenna 81.

[0702] The method performed by the network side device in the above embodiment can be implemented in the baseband device 83, which comprises a baseband processor.

[0703] The baseband device 83 may, for example, comprise at least one baseband board, and a plurality of chips are arranged on the baseband board, as shown in FIG. 8. One of the chips is, for example, a baseband processor, which is connected with the memory 85 through a bus interface to call the programs in the memory 85 and execute the network device operations shown in the above method embodiment.

[0704] The network side device can further comprise a network interface 86, which is, for example, a common public radio interface (Common Public Radio Interface, CPRI).

[0705] Specifically, the network side device 80 of the embodiment of the application further comprises instructions or programs stored in the memory 85 and executable on the processor 84. The processor 84 calls the instructions or programs in the memory 85 to execute the method performed by each module shown in FIG. 5, and achieves the same technical effects. To avoid repetition, details are not described here.

[0706] The embodiment of the present application further provides a readable storage medium, and the readable storage medium stores a program or instructions, the program or instructions are executed by a processor to realize each process of the communication method embodiment, and the same technical effects can be achieved. To avoid repetition, details are not described herein.

[0707] The processor is the processor in the terminal in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer readable only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc. In some examples, the readable storage medium can be a non-transitory readable storage medium.

[0708] The embodiment of the present application further provides a chip, and the chip includes a processor and a communication interface. The communication interface is coupled with the processor. The processor is used to run a program or instructions to realize each process of the communication method embodiment, and the same technical effects can be achieved. To avoid repetition, details are not described herein.

[0709] It should be understood that the chip mentioned in the embodiment of the present application can also be referred to as a system chip, a system chip, a chip system or a system on chip, etc.

[0710] The embodiment of the present application further provides a computer program / program product, and the computer program / program product is stored in a storage medium. The computer program / program product is executed by at least one processor to realize each process of the communication method embodiment, and the same technical effects can be achieved. To avoid repetition, details are not described herein.

[0711] The embodiment of the present application further provides a communication system, and the communication system includes a terminal and a network side device. The terminal can be used to execute the steps of the method shown in FIG. 2. The network side device can be used to execute the steps of the method shown in FIG. 3.

[0712] It should be noted that, in the present document, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a", "comprising", or the like does not, without more constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element. Furthermore, it is to be understood that the methods and apparatuses of the present application can be carried out by specific hardware, by software, or by a combination of hardware and software. It is therefore, contemplated to this patent to cover any and all modifications, variations, or equivalents that fall within the scope of the present application. Accordingly, where a concept can have been illustrated in only one of the exemplary embodiments, various aspects of the concept can be modified and / or combined to produce a variety of other embodiments that are not specifically illustrated. Thus, for purposes of describing particular embodiments, reference has been made to orientations. However, it should be understood that the described embodiments can be carried out in other orientations than those explicitly described without departing from the scope of the present application.

[0713] From the above description of the embodiments, it is apparent that the above-mentioned method can be realized by means of a computer software product and a general hardware platform, of course, it can also be realized by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disc, optical disc, etc.), and includes a plurality of instructions for making the terminal or network side device execute the method described in each embodiment of the present application.

[0714] The embodiments of the present application are described above in conjunction with the drawings, but the present application is not limited to the above-described specific embodiments, and the above-described specific embodiments are merely illustrative rather than limiting, and a person of ordinary skill in the art can make many forms of embodiments under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims.

Claims

1. A communication method, comprising: a terminal performing a first operation; wherein the first operation comprises at least one of: determining a synchronization signal block (SSB) detection capability of the terminal; reporting the SSB detection capability of the terminal, and / or requesting SSB transmission corresponding to the SSB detection capability of the terminal; determining an SSB transmission capability of a network-side device.

2. The method of claim 1, wherein, The determining of the SSB detection capability of the terminal comprises at least one of: the terminal determining the SSB detection capability of the terminal based on at least one of: default information, protocol agreement, preconfigured information; the terminal determining the SSB detection capability of the terminal according to a priority of the terminal; the terminal determining the SSB detection capability of the terminal according to a terminal type and / or a service type of the terminal; the terminal determining the SSB detection capability of the terminal according to a capability level of the terminal.

3. The method of claim 1 or 2, wherein, The reporting of the SSB detection capability of the terminal comprises at least one of: the terminal sending first information to the network-side device, the first information being used to indicate a priority of the terminal, the priority of the terminal being used to implicitly indicate the SSB detection capability of the terminal; the terminal sending second information to the network-side device, the second information being used to indicate a terminal type and / or a service type of the terminal, the terminal type and / or the service type of the terminal being used to implicitly indicate the SSB detection capability of the terminal; the terminal sending third information to the network-side device, the third information being used to indicate a capability level of the terminal, the capability level of the terminal being used to implicitly indicate the SSB detection capability of the terminal.

4. The method according to any one of claims 1 to 3, wherein, The reporting of the SSB detection capability of the terminal, and / or the requesting of the SSB transmission corresponding to the SSB detection capability of the terminal comprises: the terminal reporting the SSB detection capability of the terminal, and / or requesting the SSB transmission corresponding to the SSB detection capability of the terminal by at least one of: a physical random access channel (PRACH) resource and / or information of the PRACH resource; a wake-up signal (WUS); a sounding reference signal (SRS); a resource of a Msg3 and / or information carried by the Msg3; a resource of a MsgA and / or information carried by the MsgA; a first signal defined additionally; a transmission time window of at least one of the PRACH signal, the WUS, the SRS, the Msg3, the MsgA, and the first signal; a radio resource control (RRC) signaling.

5. The method of claim 4, wherein, The PRACH resource and / or the information of the PRACH resource comprises at least one of: a random access preamble, or an index of the random access preamble; a location of a random access occasion (RO), or an index of the RO; a reference signal associated with the PRACH resource; a feature identifier corresponding to the PRACH resource.

6. The method of claim 5, wherein, The feature identifier comprises at least one of: a PRACH sequence; scrambling information of the PRACH sequence; interleaving information of the PRACH sequence; spreading information of the PRACH sequence; a root sequence of the PRACH sequence; a cyclic shift of the PRACH sequence; an initialization identifier of the PRACH sequence.

7. The method of claim 4, wherein, The resource of the Msg3 and / or information carried by the Msg3, including at least one of the following: Information bits or information fields in the Msg3; Logical channel identification LCID or enhanced logical channel identification eLCID of the Msg3; Uplink control information multiplexed on the Msg3; DMRS resource corresponding to the Msg3; Scrambling sequence of the Msg3; Information attribute of the Msg3.

8. The method of claim 7, wherein, The information attribute of the Msg3 includes at least one of the following: Time-frequency domain resource of the Msg3; Payload size of the Msg3; Type of the Msg3.

9. The method of claim 4, wherein, The resource of the MsgA and / or information carried by the MsgA, including at least one of the following: Information bits or information fields in the MsgA; LCID or eLCID of the MsgA; Information attribute of the MsgA; Uplink control information multiplexed on the MsgA; DMRS resource corresponding to the MsgA; Scrambling sequence of the MsgA.

10. The method of claim 7, wherein, The information attribute of the MsgA includes at least one of the following: Time-frequency domain resource of the MsgA; Transmission opportunity group in which the MsgA is located.

11. The method according to any one of claims 1 to 10, wherein, The determination of the SSB transmission capability of the network side device includes at least one of the following: The terminal determines whether the network side device supports specific SSB transmission according to the indication information of the network side device, and / or, in the case where it is determined that the network side device supports specific SSB transmission, determines the SSB transmission capability of the network side device; The terminal determines whether the second cell supports specific SSB transmission according to the related information of the first cell, and / or, in the case where it is determined that the second cell supports specific SSB transmission, determines the SSB transmission capability of the second cell; The terminal determines whether the second RAT of the network side device supports specific SSB transmission according to the first radio access technology RAT of the network side device, and / or, in the case where it is determined that the second RAT supports specific SSB transmission, determines the SSB transmission capability of the second RAT; The terminal determines whether the network side device supports specific SSB transmission according to the time-frequency domain resource of the SSB transmission, and / or, in the case where it is determined that the network side device supports specific SSB transmission, determines the SSB transmission capability of the network side device; The terminal determines whether the network side device supports specific SSB transmission according to the network information of the network side device, and / or, in the case where it is determined that the network side device supports specific SSB transmission, determines the SSB transmission capability of the network side device.

12. The method of claim 11, wherein, The network information includes at least one of the following: The network side device has at least one of the following: one frequency band, one sub-band, one frequency band combination, a group of frequency bands, a group of sub-bands, a group of frequency band combinations; The network side device has one spectrum range or a group of spectrum ranges; The network side device has one carrier or a group of carriers; The cell of the network side device belongs to or does not belong to at least one of the following: a multi-frequency band cell, a multi-sub-band cell, a multi-carrier cell, a multi-BWP cell; The cell of the network-side device belongs to or does not belong to at least one of the following: a cell of a non-continuous multi-band, a cell of a non-continuous multi-subband, a cell of a non-continuous multi-carrier, a cell of a non-continuous multi-BWP; The network-side device has a synchronization raster sync raster or a group of sync rasters; The network of the network-side device belongs to or does not belong to a terrestrial network; The network of the network-side device belongs to or does not belong to a non-terrestrial network, or the network of the network-side device belongs to or does not belong to a satellite network; The network of the network-side device belongs to or does not belong to a cell-free network, or the network of the network-side device belongs to or does not belong to a large cell network; The network of the network-side device belongs to or does not belong to an energy-saving network.

13. The method of any one of claims 1 to 12, further comprising: The terminal receives a system message sent by the network-side device; The system message includes at least one of first indication information and second indication information; The first indication information is used to indicate that the first type of terminal is prohibited to camp on; the second indication information is used to indicate whether the terminal supporting specific SSB detection is allowed to camp on, and / or the second indication information is used to indicate whether the network-side device adopts specific SSB transmission.

14. The method according to any one of claims 1 to 13, wherein, The SSB detection capability of the terminal includes at least one of: The SSB period supported by the terminal; The SSB structure supported by the terminal; The terminal supports on-demand SSB; The terminal supports non-on-demand SSB; The SSB power supported by the terminal; The SSB waveform supported by the terminal; The cyclic prefix CP length of the SSB supported by the terminal; The subcarrier spacing SCS size of the SSB supported by the terminal; The demodulation reference signal DMRS pattern of the SSB supported by the terminal; The coding mode of the SSB supported by the terminal; The terminal supports SSB detection in each per SSB or per SSB group corresponding to a cross-division duplex XDD configuration; The terminal supports SSB detection in an enhanced full-duplex or sub-band full-duplex configuration; The terminal supports at least two levels of SSB detection; The terminal supports SSB detection of a number of sync rasters less than or equal to a first value; The terminal supports SSB detection of a sync raster step size greater than or equal to a second value; The terminal supports SSB detection associated with on-demand physical random access channel PRACH resources; The terminal supports SSB detection on multiple subbands of a single cell; The terminal supports SSB detection on multiple bandwidth parts BWPs of a single cell; The terminal supports SSB detection on multiple frequency bands of a single cell; The terminal supports SSB detection in a hopping or time-domain hopping mode; The terminal supports detection of a forwarded SSB; The terminal supports detection of an amplified SSB; The terminal supports detection of a reflected SSB; The terminal supports detecting SSBs on multiple sync rasters simultaneously; The terminal supports switching between multiple types of SSB detection.

15. The method of claim 14, wherein, The at least two levels of SSB detection satisfy at least one of the following: The first level of SSB detection is detecting a common SSB or detecting a part of a common SSB, and the second or more levels of SSB detection are detecting a SSB corresponding to a first feature or detecting a part of a SSB corresponding to a first feature; The first level of SSB detection is detecting a low-power SSB or detecting a part of a low-power SSB, and the second or more levels of SSB detection are detecting a normal-power SSB or detecting a part of a normal-power SSB; The first level of SSB detection is detecting a SSB for random access resource selection or detecting a part of a SSB for random access resource selection, and the second or more levels of SSB detection are detecting a SSB for measurement or detecting a part of a SSB for measurement; The first level of SSB detection is detecting a SSB on a sync raster or detecting a part of a SSB on a sync raster, and the second or more levels of SSB detection are detecting a SSB not on a sync raster or detecting a part of a SSB not on a sync raster; The first level of SSB detection is detecting a small-bandwidth SSB or detecting a part of a small-bandwidth SSB, and the second or more levels of SSB detection are detecting a large-bandwidth SSB or detecting a part of a large-bandwidth SSB; The first level of SSB detection is detecting a SSB for coarse synchronization or detecting a part of a SSB for coarse synchronization, and the second or more levels of SSB detection are detecting a SSB for fine synchronization or detecting a part of a SSB for fine synchronization.

16. The method of any one of claims 1 to 15, wherein, The reporting granularity of the SSB detection capability satisfies at least one of the following: The reporting granularity of the SSB detection capability is a terminal; The reporting granularity of the SSB detection capability is a terminal type; The reporting granularity of the SSB detection capability is a priority of a terminal; The reporting granularity of the SSB detection capability is any one of the following: a single frequency band, a single frequency range, a single carrier, a combination of different frequency bands, a combination of different frequency ranges, a combination of different carriers; The reporting granularity of the SSB detection capability is a combination of at least two of the following: a frequency band, a frequency range, and a carrier; The reporting granularity of the SSB detection capability is a communication scenario; The reporting granularity of the SSB detection capability is a SSB or a SSB group.

17. The method of any one of claims 1 to 16, wherein, The SSB transmission capability of the network-side device includes at least one of the following: A SSB period supported by the network-side device; A SSB structure supported by the network-side device; The network-side device supports on demand SSB; The network-side device supports non-on demand SSB; A SSB power supported by the network-side device; A SSB waveform supported by the network-side device; A CP length of a SSB supported by the network-side device; An SCS size of a SSB supported by the network-side device; A DMRS pattern of a SSB supported by the network-side device; An encoding manner of an SSB supported by the network-side device; The network-side device supports SSB transmission in per-SSB or per-SSB group corresponding XDD configuration; The network-side device supports SSB transmission in enhanced full-duplex or sub-band full-duplex configuration; The network-side device supports at least two levels of SSB transmission; The network-side device supports SSB transmission of a sync raster number less than or equal to a third value; The network-side device supports SSB transmission of a sync raster step greater than or equal to a fourth value; The network-side device supports SSB transmission associated with on-demand PRACH resources; The network-side device supports SSB transmission on multiple sub-bands of a single cell; The network-side device supports SSB transmission on multiple BWPs of a single cell; The network-side device supports SSB transmission on multiple frequency bands of a single cell; The network-side device supports SSB transmission in hopping or time-domain hopping mode; The network-side device supports transmission of a forwarded SSB; The network-side device supports transmission of an amplified SSB; The network-side device supports transmission of a reflected SSB; The network-side device supports transmitting SSBs on multiple sync rasters simultaneously; The network-side device supports switching of multiple types of SSB transmission.

18. The method of any one of claims 1 to 17, wherein, The granularity of the SSB transmission capability is SSB or SSB group.

19. A communication method, comprising: A network-side device performs a second operation; The second operation includes at least one of the following: Obtaining an SSB detection capability reported by a terminal, and / or obtaining a request for SSB transmission corresponding to the SSB detection capability of the terminal sent by the terminal; Determining the SSB transmission capability of the network-side device; Sending fourth information to the terminal, the fourth information being used to indicate whether the network-side device supports a specific SSB transmission, and / or, in the case where the network-side device supports a specific SSB transmission, indicating the SSB transmission capability of the network-side device; or the fourth information is used to configure a specific SSB.

20. The method of claim 19, wherein, The obtaining of the SSB detection capability reported by the terminal includes at least one of the following: The network-side device receives first information sent by the terminal, the first information being used to indicate the priority of the terminal, and the priority of the terminal being used to implicitly indicate the SSB detection capability of the terminal; The network-side device receives second information sent by the terminal, the second information being used to indicate the terminal type and / or service type of the terminal, and the terminal type and / or service type of the terminal being used to implicitly indicate the SSB detection capability of the terminal; The network-side device receives third information sent by the terminal, the third information being used to indicate the capability level of the terminal, and the capability level of the terminal being used to implicitly indicate the SSB detection capability of the terminal.

21. The method of claim 19 or 20, wherein, The obtaining of the SSB detection capability reported by the terminal, and / or the obtaining of the request for SSB transmission corresponding to the SSB detection capability of the terminal sent by the terminal, includes: The network-side device receives the SSB detection capability reported by the terminal and / or receives a request for SSB transmission corresponding to the SSB detection capability of the terminal sent by the terminal through at least one of the following: PRACH resource and / or information of PRACH resource; Wake-up signal (WUS); Sounding reference signal (SRS); Resource of Msg3 and / or information carried by Msg3; Resource of MsgA and / or information carried by MsgA; First signal defined additionally; Transmission time window of at least one of PRACH signal, WUS, SRS, Msg3, MsgA and first signal; RRC signaling.

22. The method of claim 21, wherein, The PRACH resource and / or information of PRACH resource include at least one of the following: Random access preamble or index of random access preamble; Position of random access occasion (RO) or index of RO; Reference signal associated with PRACH resource; Feature identifier corresponding to PRACH resource.

23. The method of claim 22, wherein, The feature identifier includes at least one of the following: PRACH sequence; Scrambling information of PRACH sequence; Interleaving information of PRACH sequence; Spreading information of PRACH sequence; Root sequence of PRACH sequence; Cyclic shift of PRACH sequence; Initialization identifier of PRACH sequence.

24. The method of claim 21, wherein, The resource of Msg3 and / or information carried by Msg3 include at least one of the following: Information bit or information field in Msg3; LCID or eLCID of Msg3; Uplink control information multiplexed on Msg3; DMRS resource corresponding to Msg3; Scrambling sequence of Msg3; Information attribute of Msg3.

25. The method of claim 24, wherein, The information attribute of Msg3 includes at least one of the following: Time-frequency domain resource of Msg3; Payload size of Msg3; Type of Msg3.

26. The method of claim 21, wherein, The resource of MsgA and / or information carried by MsgA include at least one of the following: Information bit or information field in MsgA; LCID or eLCID of MsgA; Information attribute of MsgA; Uplink control information multiplexed on MsgA; DMRS resource corresponding to MsgA; Scrambling sequence of MsgA.

27. The method of claim 26, wherein, The information attribute of MsgA includes at least one of the following: Time-frequency domain resource of MsgA; Transmission opportunity group in which MsgA is located.

28. The method of any one of claims 19 to 27, wherein, The determination of SSB transmission capability of the network-side device includes at least one of the following: The network-side device determines whether a second cell supports specific SSB transmission according to related information of the first cell, and / or determines SSB transmission capability of the second cell in the case that the second cell supports specific SSB transmission; The network-side device determines whether a second RAT of the network-side device supports specific SSB transmission according to a first RAT of the network-side device, and / or determines SSB transmission capability of the second RAT in the case that the second RAT supports specific SSB transmission; The network-side device determines whether the network-side device supports a specific SSB transmission according to time-frequency domain resources of SSB transmission, and / or, in a case where it is determined that the network-side device supports a specific SSB transmission, determines SSB transmission capability of the network-side device; The network-side device determines whether the network-side device supports a specific SSB transmission according to network information, and / or, in a case where it is determined that the network-side device supports a specific SSB transmission, determines SSB transmission capability of the network-side device.

29. The method of claim 28, wherein, The network information comprises at least one of the following: The network-side device has at least one of the following: one frequency band, one sub-band, one frequency band combination, a group of frequency bands, a group of sub-bands, a group of frequency band combinations; The network-side device has one spectrum range or a group of spectrum ranges; The network-side device has one carrier or a group of carriers; The cell of the network-side device belongs to or does not belong to at least one of the following: a multi-frequency band cell, a multi-sub-band cell, a multi-carrier cell, a multi-BWP cell; The cell of the network-side device belongs to or does not belong to at least one of the following: a non-continuous multi-frequency band cell, a non-continuous multi-sub-band cell, a non-continuous multi-carrier cell, a non-continuous multi-BWP cell; The network-side device has one sync raster or a group of sync rasters; The network of the network-side device belongs to or does not belong to a terrestrial network; The network of the network-side device belongs to or does not belong to a non-terrestrial network, or the network of the network-side device belongs to or does not belong to a satellite network; The network of the network-side device belongs to or does not belong to a non-cell network, or the network of the network-side device belongs to or does not belong to a large cell network; The network of the network-side device belongs to or does not belong to an energy-saving network.

30. The method of any one of claims 19 to 29, further comprising: The network-side device sends a system message to the terminal; The system message comprises at least one of first indication information and second indication information; The first indication information is used to indicate that the first type of terminal is prohibited from camping; the second indication information is used to indicate whether the terminal supporting specific SSB detection is allowed to camp, and / or, the second indication information is used to indicate whether the network-side device adopts specific SSB transmission.

31. The method of any one of claims 19 to 30, wherein, The SSB detection capability of the terminal comprises at least one of the following: The SSB period supported by the terminal; The SSB structure supported by the terminal; The terminal supports on demand SSB; The terminal supports non-on demand SSB; The SSB power supported by the terminal; The SSB waveform supported by the terminal; The CP length of the SSB supported by the terminal; The SCS size of the SSB supported by the terminal; The DMRS mode of the SSB supported by the terminal; The coding mode of the SSB supported by the terminal; The terminal supports SSB detection under per SSB or per SSB group corresponding XDD configuration; The terminal supports SSB detection in enhanced full duplex or sub-band full duplex configuration; The terminal supports at least two levels of SSB detection; The terminal supports SSB detection with a number of sync rasters less than or equal to a first value; The terminal supports SSB detection with a sync raster step size greater than or equal to a second value; The terminal supports SSB detection associated with on demand PRACH resources; The terminal supports SSB detection on multiple sub-bands in a single cell; The terminal supports SSB detection on multiple BWPs in a single cell; The terminal supports SSB detection on multiple frequency bands in a single cell; The terminal supports SSB detection in hopping or time domain hopping mode; The terminal supports detection of a repeated SSB; The terminal supports detection of an amplified SSB; The terminal supports detection of a reflected SSB; The terminal supports detecting SSBs on multiple sync rasters simultaneously; The terminal supports switching of multiple types of SSB detection.

32. The method of any one of claims 19 to 31, wherein, The reporting granularity of the SSB detection capability satisfies at least one of the following: The reporting granularity of the SSB detection capability is a terminal; The reporting granularity of the SSB detection capability is a terminal type; The reporting granularity of the SSB detection capability is a priority of a terminal; The reporting granularity of the SSB detection capability is any of the following: a single frequency band, a single frequency range, a single carrier, a combination of different frequency bands, a combination of different frequency ranges, a combination of different carriers; The reporting granularity of the SSB detection capability is a combination of at least two of the following: a frequency band, a frequency range, a carrier; The reporting granularity of the SSB detection capability is a communication scenario; The reporting granularity of the SSB detection capability is an SSB or an SSB group.

33. The method of any one of claims 19 to 32, wherein, The SSB transmission capability of the network side device includes at least one of the following: The SSB period supported by the network side device; The SSB structure supported by the network side device; The network side device supports on demand SSB; The network side device supports non-on demand SSB; The SSB power supported by the network side device; The SSB waveform supported by the network side device; The CP length of the SSB supported by the network side device; The SCS size of the SSB supported by the network side device; The DMRS pattern of the SSB supported by the network side device; The encoding mode of the SSB supported by the network side device; The network side device supports SSB transmission in per SSB or per SSB group corresponding XDD configuration; The network side device supports SSB transmission in enhanced full duplex or sub-band full duplex configuration; The network side device supports at least two levels of SSB transmission; The network side device supports SSB transmission with a number of sync rasters less than or equal to a third value; The network side device supports SSB transmission with a sync raster step size greater than or equal to a fourth value; The network side device supports SSB transmission associated with on demand PRACH resources; The network-side device supports SSB transmission on multiple sub-bands of a single cell; The network-side device supports SSB transmission on multiple BWPs of a single cell; The network-side device supports SSB transmission on multiple frequency bands of a single cell; The network-side device supports SSB transmission in a hopping or time-domain hopping mode; The network-side device supports transmission of a forwarded SSB; The network-side device supports transmission of an amplified SSB; The network-side device supports transmission of a reflected SSB; The network-side device supports transmission of an SSB on multiple sync rasters at the same time; The network-side device supports switching between multiple types of SSB transmission.

34. A communication apparatus, comprising: a first processing module configured to perform a first operation; wherein the first operation comprises at least one of the following: determining an SSB detection capability of a terminal; reporting the SSB detection capability of the terminal, and / or requesting SSB transmission corresponding to the SSB detection capability of the terminal; determining an SSB transmission capability of a network-side device.

35. The apparatus according to claim 34, wherein the first processing module is specifically configured to perform at least one of the following: determining the SSB detection capability of the terminal based on at least one of the following: default information, protocol agreement, preconfigured information; determining the SSB detection capability of the terminal according to a priority of the terminal; determining the SSB detection capability of the terminal according to a terminal type and / or a service type of the terminal; determining the SSB detection capability of the terminal according to a capability level of the terminal.

36. The apparatus according to any one of claims 34 or 35, further comprising: a sending module configured to perform at least one of the following: sending, to the network-side device, first information used to indicate a priority of the terminal, the priority of the terminal being used to implicitly indicate the SSB detection capability of the terminal; sending, to the network-side device, second information used to indicate a terminal type and / or a service type of the terminal, the terminal type and / or the service type of the terminal being used to implicitly indicate the SSB detection capability of the terminal; sending, to the network-side device, third information used to indicate a capability level of the terminal, the capability level of the terminal being used to implicitly indicate the SSB detection capability of the terminal.

37. The apparatus according to any one of claims 34 to 36, wherein the first processing module is specifically configured to report the SSB detection capability of the terminal, and / or request SSB transmission corresponding to the SSB detection capability of the terminal, by at least one of the following: PRACH resource and / or information of PRACH resource; WUS; SRS; resource of Msg3 and / or information carried by Msg3; resource of MsgA and / or information carried by MsgA; first signal defined additionally; sending time window of at least one of PRACH signal, WUS, SRS, Msg3, MsgA and first signal; RRC signaling.

38. A communication apparatus, comprising: a second processing module configured to perform a second operation; wherein the second operation comprises at least one of the following: obtaining SSB detection capability reported by a terminal, and / or obtaining a request for SSB transmission corresponding to the SSB detection capability of the terminal sent by the terminal; determining SSB transmission capability of a network side device; sending fourth information to the terminal, the fourth information being used to indicate whether the network side device supports specific SSB transmission, and / or, in the case where the network side device supports specific SSB transmission, indicate the SSB transmission capability of the network side device; or the fourth information being used to configure specific SSB.

39. The apparatus of claim 38, further comprising: a sending module configured to perform at least one of the following: receive first information sent by a terminal, the first information being used to indicate a priority of the terminal, the priority of the terminal being used to implicitly indicate SSB detection capability of the terminal; receive second information sent by a terminal, the second information being used to indicate a terminal type and / or a service type of the terminal, the terminal type and / or the service type of the terminal being used to implicitly indicate SSB detection capability of the terminal; receive third information sent by a terminal, the third information being used to indicate a capability level of the terminal, the capability level of the terminal being used to implicitly indicate SSB detection capability of the terminal.

40. A terminal comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement steps of the communication method of any one of claims 1 to 18.

41. A network side device comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement steps of the communication method of any one of claims 19 to 33.

42. A readable storage medium, the readable storage medium storing programs or instructions, the programs or instructions being executed by a processor to implement steps of the communication method of any one of claims 1 to 18, or implement steps of the communication method of any one of claims 19 to 33.

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